- Compatible with all smartphones and tablets with micro-USB port and OTG function.
- Note: Only support for smartphones with OTG function.
Frequently Asked Questions :
1. Why I bought 8GB USB, but the computer show it is about 7.4GB?
Because:
- Flash memory producers are using decimal arithmetic:
1KB=1000Bit, 1MB = 1000KB, 1G = 1000MB
- Calculated, the operating system using binary arithmetic:
1KB=1024Bit, 1MB = 1024KB, 1GB = 1024MB
That is why there are some differences between display capacity and nominal capacity of flash memory product. And different factories will produce different capacity USB flash drives. So it is normal to has little capacity deviation! So it is normal to has little capacity deviation! So it is normal to has little capacity deviation!
8GB = approximately 7.4GB-7.6GB
16GB = approximately 14GB-15GB
32GB = approximately 28GB-30GB
64GB = approximately 58GB-60GB
*Please note that: Our USB flash drive is the real capacity,you can use the H2text to text it.H2text is the most authoritative testing software in the world.
2. Why the device is not recognized?
Normally, when you connect USB drives to the computer, it will installs the driver automatically. If your USB flash drive is not recognized, please turn off the firewall and antivirus software of your computer and try again. If it still can not work,please contact us, we will help you solve this problem.
Tips for Usage :
1. When you use your USB flash drive, it is better to copy your files to the computer than operate your files in USB flash drive directly.
2. Please do not remove your USB flash drive when it is being used otherwise your data may loss.
3. After using USB flash drive, it is better to remove it as soon as possible. That will helps to extend its storage lifetime.
4. Please do not format your USB flash drive frequently, otherwise the USB will be demaged easily.
Tips: this product is not suitable for the iPhone.
Brand Story :
“LEIZHAN” company is located at Hua Qiang Bei Shenzhen China, the center of Electronic world.”LEIZHAN” devotes to provide both high quality and competitive price to all customers all around the world. Including OTG USB Sticks, Metal USB flash drives,Wooden USB pen drives,Plastic USB flash disk,Silicone USB pen drives and Crystal USB flash drives,etc. We provide more than 200 kinds of USB flash drives with capacity 4GB 8GB 16GB 32GB 64GB such as cute animals USB sticks,cartoon USB minisions, metal pen drives sticks and so on. We can help customers to print or emboss logo if they want. We have excellent team, they will try them best to solve all your problems. We are trusted by many buyers from all over the world! Have a nice shopping on our store!
After-sales Service :
1. We hope you can get your goods very very fast.But if you can not get your goods after estimated shipping time, please contact me firstly before open dispute, ok?We will check the parcel for you and we will give you full refund or resend you a new one if the parcel is lost on the way.
2. When you get our goods,please do not leave us any bad feedback if the goods has quality problem or get shortage, please contact me, we will help you solve this after getting the evidence provided by you.
3. If you like our goods, that will be very nice to leave us good feedback to support us !!!
- Compatible with all smartphones and tablets with micro-USB port and OTG function.
- Note: Only support for smartphones with OTG function.
Frequently Asked Questions :
1. Why I bought 8GB USB, but the computer show it is about 7.4GB?
Because:
- Flash memory producers are using decimal arithmetic:
1KB=1000Bit, 1MB = 1000KB, 1G = 1000MB
- Calculated, the operating system using binary arithmetic:
1KB=1024Bit, 1MB = 1024KB, 1GB = 1024MB
That is why there are some differences between display capacity and nominal capacity of flash memory product. And different factories will produce different capacity USB flash drives. So it is normal to has little capacity deviation! So it is normal to has little capacity deviation! So it is normal to has little capacity deviation!
8GB = approximately 7.4GB-7.6GB
16GB = approximately 14GB-15GB
32GB = approximately 28GB-30GB
64GB = approximately 58GB-60GB
*Please note that: Our USB flash drive is the real capacity,you can use the H2text to text it.H2text is the most authoritative testing software in the world.
2. Why the device is not recognized?
Normally, when you connect USB drives to the computer, it will installs the driver automatically. If your USB flash drive is not recognized, please turn off the firewall and antivirus software of your computer and try again. If it still can not work,please contact us, we will help you solve this problem.
Tips for Usage :
1. When you use your USB flash drive, it is better to copy your files to the computer than operate your files in USB flash drive directly.
2. Please do not remove your USB flash drive when it is being used otherwise your data may loss.
3. After using USB flash drive, it is better to remove it as soon as possible. That will helps to extend its storage lifetime.
4. Please do not format your USB flash drive frequently, otherwise the USB will be demaged easily.
Tips: this product is not suitable for the iPhone.
Brand Story :
“LEIZHAN” company is located at Hua Qiang Bei Shenzhen China, the center of Electronic world.”LEIZHAN” devotes to provide both high quality and competitive price to all customers all around the world. Including OTG USB Sticks, Metal USB flash drives,Wooden USB pen drives,Plastic USB flash disk,Silicone USB pen drives and Crystal USB flash drives,etc. We provide more than 200 kinds of USB flash drives with capacity 4GB 8GB 16GB 32GB 64GB such as cute animals USB sticks,cartoon USB minisions, metal pen drives sticks and so on. We can help customers to print or emboss logo if they want. We have excellent team, they will try them best to solve all your problems. We are trusted by many buyers from all over the world! Have a nice shopping on our store!
-
- iPhone X/10
- iPhone 8，iPhone 8 Plus
- iPhone 7 , iPhone 7 Plus
- iPhone 6 / 6s, iPhone 6 Plus / 6s Plus
- iPhone 5, iPhone 5S, iPhone 5C
- iPad Air, iPad Air2
- iPad iPad 4
- iPad mini
- iPad mini 2 / 3 / 4
- iPad Pro (2017)
- iPod touch 5
- All Android smart phone. (Please mark sure your phone support OTG and the biggest capacity)
-
Package include: 1 x USB flash drive with retail package
-
For IOS: For iPhone5/5s/5c/6/6plus/6S/6S plus/7/7Plus/8/X
For iPad4/Air/Mini/Mini2
For Android: For Samsung S3/4/5,For Note2/3/4 and so on
Features:
1.External expansion for IOS/Android/PC.
2.Equipped with USB2.0 adapter.
3.Support files Encryption.
4.Support manage Data directly on the i-FlashDrive. (Create, copy, move,delete, rename, open and so on)
5.Support Playback Videos/Music directly from i-FlashDrive.
6.Support Backup Contact information list.
7.Format support:common image format,such as MP3,MP4,Mov,MPEG-4,flv,RM,RMVB and other video and audio format.Maximum support 1080P.mp4 video format.
8.Support copy the file form mobile to i-Flash Driver HD.Support files Encryption/decryption in i-Flash Driver HD
9.i- Flash Driver HD is good equipment for TV fan,HD video,lossiess music lovers.
About capacity:
4GB=approximately 3.6GB-3.8GB
8GB=approximately 7.4GB-7.6GB
16GB=approximately 14.4GB-14.8GB
32GB=approximately 28.5GB-30GB
64GB=approximately 58.5GB-60GB
128GB=approximately 110.5GB-120GB
256GB=approximately 240.5GB-250GB
Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MB
Calculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB;
So there are some differences between display capacity and nominal capacity of flash memory products
Attention:
To avoid data loss or mechanical damage, do not power down your computer or unplug flash disk during transfer.
Please do not remove your USB flash drive when it is being used otherwise your data may loss.
After using USB flash drive, it is better to remove it as soon as possible. That will helps to extend its storage lifetime.
Please do not format your USB flash drive frequently, otherwise the USB will be damaged easily.
· Supports hot plug & play, High speed USB 3.0 port,OTG port
· No physical drive required
· Plug-and-play; no external power supply required, USB bus-powered
· Support all current computer systems,and all Android devices
· Support all iphone 5/5s/5c/se/6/6s/7/7plus/ipod/ipad ,but IOS 8.0 above
· speeds vary depending on types of file being transferred and computer configuration.
· Read Rate: 20Mb-30Mb/S Write Rate: 9~12Mb/S
· Interface USB 3.0 OTG
· Working Temp -40- +70C
· Storage Temp. -50- +80C
· Excellent USB Memory stick in excellent condition
About capacity:
· 8GB=approximately 7.4GB-7.6GB
· 16GB=approximately 14.4GB-14.8GB
· 32GB=approximately 28.5GB-30GB
· 64GB=approximately 58.5GB-60GB
· 128GB=approximately 100GB-120GB
Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MB
Calculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB;
So there are some differences between display capacity and nominal capacity of flash memory products
Package included:
1 X USB Flash Drive with Retail package
Attention:
l To avoid data loss or mechanical damage, do not power down your computer or unplug flash disk during transfer.
l Please do not remove your USB flash drive when it is being used otherwise your data
may loss.
l After using USB flash drive, it is better to remove it as soon as possible. That will
helps to extend its storage lifetime.
l Please do not format your USB flash drive frequently, otherwise the USB will be
damaged easily.
For IOS: For iPhone5/5s/5c/6/6plus/6S/6S plus/7/7Plus/8/X
For iPad4/Air/Mini/Mini2
For Android: For Samsung S3/4/5,For Note2/3/4 and so on
Features:
1.External expansion for IOS/Android/PC.
2.Equipped with USB2.0 adapter.
3.Support files Encryption.
4.Support manage Data directly on the i-FlashDrive. (Create, copy, move,delete, rename, open and so on)
5.Support Playback Videos/Music directly from i-FlashDrive.
6.Support Backup Contact information list.
7.Format support:common image format,such as MP3,MP4,Mov,MPEG-4,flv,RM,RMVB and other video and audio format.Maximum support 1080P.mp4 video format.
8.Support copy the file form mobile to i-Flash Driver HD.Support files Encryption/decryption in i-Flash Driver HD
9.i- Flash Driver HD is good equipment for TV fan,HD video,lossiess music lovers.
About capacity:
4GB=approximately 3.6GB-3.8GB
8GB=approximately 7.4GB-7.6GB
16GB=approximately 14.4GB-14.8GB
32GB=approximately 28.5GB-30GB
64GB=approximately 58.5GB-60GB
128GB=approximately 110.5GB-120GB
256GB=approximately 240.5GB-250GB
Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MB
Calculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB;
So there are some differences between display capacity and nominal capacity of flash memory products
Attention:
To avoid data loss or mechanical damage, do not power down your computer or unplug flash disk during transfer.
Please do not remove your USB flash drive when it is being used otherwise your data may loss.
After using USB flash drive, it is better to remove it as soon as possible. That will helps to extend its storage lifetime.
Please do not format your USB flash drive frequently, otherwise the USB will be damaged easily.
Compatibility with:
For IOS: For iPhone5/5s/5c/6/6plus/6S/6S plus/7/7Plus/8/X
For iPad4/Air/Mini/Mini2
For Android: For Samsung S3/4/5,For Note2/3/4 and so on
Features:
1.External expansion for IOS/Android/PC.
2.Equipped with USB2.0 adapter.
3.Support files Encryption.
4.Support manage Data directly on the i-FlashDrive. (Create, copy, move,delete, rename, open and so on)
5.Support Playback Videos/Music directly from i-FlashDrive.
6.Support Backup Contact information list.
7.Format support:common image format,such as MP3,MP4,Mov,MPEG-4,flv,RM,RMVB and other video and audio format.Maximum support 1080P.mp4 video format.
8.Support copy the file form mobile to i-Flash Driver HD.Support files Encryption/decryption in i-Flash Driver HD
9.i- Flash Driver HD is good equipment for TV fan,HD video,lossiess music lovers.
About capacity:
4GB=approximately 3.6GB-3.8GB
8GB=approximately 7.4GB-7.6GB
16GB=approximately 14.4GB-14.8GB
32GB=approximately 28.5GB-30GB
64GB=approximately 58.5GB-60GB
128GB=approximately 110.5GB-120GB
Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MB
Calculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB;
So there are some differences between display capacity and nominal capacity of flash memory products
Attention:
To avoid data loss or mechanical damage, do not power down your computer or unplug flash disk during transfer.
Please do not remove your USB flash drive when it is being used otherwise your data may loss.
After using USB flash drive, it is better to remove it as soon as possible. That will helps to extend its storage lifetime.
Please do not format your USB flash drive frequently, otherwise the USB will be damaged easily.
- Compatible with all smartphones and tablets with micro-USB port and OTG function.
- Note: Only support for smartphones with OTG function.
Frequently Asked Questions :
1. Why I bought 8GB USB, but the computer show it is about 7.4GB?
Because:
- Flash memory producers are using decimal arithmetic:
1KB=1000Bit, 1MB = 1000KB, 1G = 1000MB
- Calculated, the operating system using binary arithmetic:
1KB=1024Bit, 1MB = 1024KB, 1GB = 1024MB
That is why there are some differences between display capacity and nominal capacity of flash memory product. And different factories will produce different capacity USB flash drives. So it is normal to has little capacity deviation! So it is normal to has little capacity deviation! So it is normal to has little capacity deviation!
8GB = approximately 7.4GB-7.6GB
16GB = approximately 14GB-15GB
32GB = approximately 28GB-30GB
64GB = approximately 58GB-60GB
*Please note that: Our USB flash drive is the real capacity,you can use the H2text to text it.H2text is the most authoritative testing software in the world.
2. Why the device is not recognized?
Normally, when you connect USB drives to the computer, it will installs the driver automatically. If your USB flash drive is not recognized, please turn off the firewall and antivirus software of your computer and try again. If it still can not work,please contact us, we will help you solve this problem.
Tips for Usage :
1. When you use your USB flash drive, it is better to copy your files to the computer than operate your files in USB flash drive directly.
2. Please do not remove your USB flash drive when it is being used otherwise your data may loss.
3. After using USB flash drive, it is better to remove it as soon as possible. That will helps to extend its storage lifetime.
4. Please do not format your USB flash drive frequently, otherwise the USB will be demaged easily.
Tips: this product is not suitable for the iPhone.
Brand Story :
“LEIZHAN” company is located at Hua Qiang Bei Shenzhen China, the center of Electronic world.”LEIZHAN” devotes to provide both high quality and competitive price to all customers all around the world. Including OTG USB Sticks, Metal USB flash drives,Wooden USB pen drives,Plastic USB flash disk,Silicone USB pen drives and Crystal USB flash drives,etc. We provide more than 200 kinds of USB flash drives with capacity 4GB 8GB 16GB 32GB 64GB such as cute animals USB sticks,cartoon USB minisions, metal pen drives sticks and so on. We can help customers to print or emboss logo if they want. We have excellent team, they will try them best to solve all your problems. We are trusted by many buyers from all over the world! Have a nice shopping on our store!
After-sales Service :
1. We hope you can get your goods very very fast.But if you can not get your goods after estimated shipping time, please contact me firstly before open dispute, ok?We will check the parcel for you and we will give you full refund or resend you a new one if the parcel is lost on the way.
2. When you get our goods,please do not leave us any bad feedback if the goods has quality problem or get shortage, please contact me, we will help you solve this after getting the evidence provided by you.
3. If you like our goods, that will be very nice to leave us good feedback to support us !!!
For IOS: For iPhone5/5s/5c/6/6plus/6S/6S plus/7/7Plus/8/X
For iPad4/Air/Mini/Mini2
For Android: For Samsung S3/4/5,For Note2/3/4 and so on
Features:
1.External expansion for IOS/PC.
2.Support files Encryption.
3.Support manage Data directly on the i-FlashDrive.(Create, copy, move,delete, rename, open and so on)
4.Support Playback Videos/Music directly from i-FlashDrive.
5.Support Backup Contact information list.
6.Format support:common image format,such as MP3,MP4,Mov,MPEG-4,flv,RM,RMVB and other video and audio format.Maximum support 1080P.mp4 video format.
7.Support copy the file form mobile to i-Flash Driver HD.Support files Encryption/decryption in i-Flash Driver HD
8.i-Flash Driver HD is good equipment for TV fan,HD video,lossiess music lovers.
About Capacity:
8GB=approximately 7.4GB-7.6GB
16GB=approximately 14.4GB-14.8GB
32GB=approximately 28.5GB-30GB
64GB=approximately 58.5GB-60GB
128GB=approximately 110.5GB-120GB
Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB
calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB;
so there are some differences between display capacity and nominal capacity of flash memory product
Notice:
1. Do not Insert the pendrive with brute force and frequently,it is easy to damage the plug;
2. Do not pull the disk when access to data,or likely to cause data lose;try to pull it after disconnect disk;
3.Please make sure the max capacity your mobile or computer can support,if exceed the max capacity it can support,it can not read the pen drive.
For IOS: For iPhone5/5s/5c/6/6plus/6S/6S plus/7/7Plus/8/X
For iPad4/Air/Mini/Mini2
For Android: For Samsung S3/4/5,For Note2/3/4 and so on
Features:
1.External expansion for IOS/PC.
2.Support files Encryption.
3.Support manage Data directly on the i-FlashDrive.(Create, copy, move,delete, rename, open and so on)
4.Support Playback Videos/Music directly from i-FlashDrive.
5.Support Backup Contact information list.
6.Format support:common image format,such as MP3,MP4,Mov,MPEG-4,flv,RM,RMVB and other video and audio format.Maximum support 1080P.mp4 video format.
7.Support copy the file form mobile to i-Flash Driver HD.Support files Encryption/decryption in i-Flash Driver HD
8.i-Flash Driver HD is good equipment for TV fan,HD video,lossiess music lovers.
About Capacity:
8GB=approximately 7.4GB-7.6GB
16GB=approximately 14.4GB-14.8GB
32GB=approximately 28.5GB-30GB
64GB=approximately 58.5GB-60GB
128GB=approximately 110.5GB-120GB
Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB
calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB;
so there are some differences between display capacity and nominal capacity of flash memory product
Notice:
1. Do not Insert the pendrive with brute force and frequently,it is easy to damage the plug;
2. Do not pull the disk when access to data,or likely to cause data lose;try to pull it after disconnect disk;
3.Please make sure the max capacity your mobile or computer can support,if exceed the max capacity it can support,it can not read the pen drive.
1. Compatible Systems: For Apple IOS / For Windows systems / For Android Systems
2. Operating temperature: -10 degrees to +70 degrees
3. Weight: about 30g
4. Applicable devices: For iPhone / For iPad / For iPod / For Mac smart phones, Type-c Flash USB computers, tablet, car etc.
5. Interface: USB 3.0; Shell material metal
6. Features: Dual plug For Apple mobile / Android Smart Phone / computer dual U disk
8GB=approximately 7.2GB-7.8GB
16GB=approximately 13GB-15GB
32GB=approximately 28GB-30GB
64GB=approximately 58GB-59GB
128GB=approximately 110GB-120GB
Tips:
Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB
calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB;
so there are some differences between display capacity and nominal capacity of flash memory product
8G is about 7.2G -7.6GB;
16G is about 14-15GB ;
32G is about 28-29GB;
64G is about 58-59GB
- Compatible with all smartphones and tablets with micro-USB port and OTG function.
- Note: Only support for smartphones with OTG function.
Frequently Asked Questions :
1. Why I bought 8GB USB, but the computer show it is about 7.4GB?
Because:
- Flash memory producers are using decimal arithmetic:
1KB=1000Bit, 1MB = 1000KB, 1G = 1000MB
- Calculated, the operating system using binary arithmetic:
1KB=1024Bit, 1MB = 1024KB, 1GB = 1024MB
That is why there are some differences between display capacity and nominal capacity of flash memory product. And different factories will produce different capacity USB flash drives. So it is normal to has little capacity deviation! So it is normal to has little capacity deviation! So it is normal to has little capacity deviation!
8GB = approximately 7.4GB-7.6GB
16GB = approximately 14GB-15GB
32GB = approximately 28GB-30GB
64GB = approximately 58GB-60GB
*Please note that: Our USB flash drive is the real capacity,you can use the H2text to text it.H2text is the most authoritative testing software in the world.
2. Why the device is not recognized?
Normally, when you connect USB drives to the computer, it will installs the driver automatically. If your USB flash drive is not recognized, please turn off the firewall and antivirus software of your computer and try again. If it still can not work,please contact us, we will help you solve this problem.
Tips for Usage :
1. When you use your USB flash drive, it is better to copy your files to the computer than operate your files in USB flash drive directly.
2. Please do not remove your USB flash drive when it is being used otherwise your data may loss.
3. After using USB flash drive, it is better to remove it as soon as possible. That will helps to extend its storage lifetime.
4. Please do not format your USB flash drive frequently, otherwise the USB will be demaged easily.
Tips: this product is not suitable for the iPhone.
Brand Story :
“LEIZHAN” company is located at Hua Qiang Bei Shenzhen China, the center of Electronic world.”LEIZHAN” devotes to provide both high quality and competitive price to all customers all around the world. Including OTG USB Sticks, Metal USB flash drives,Wooden USB pen drives,Plastic USB flash disk,Silicone USB pen drives and Crystal USB flash drives,etc. We provide more than 200 kinds of USB flash drives with capacity 4GB 8GB 16GB 32GB 64GB such as cute animals USB sticks,cartoon USB minisions, metal pen drives sticks and so on. We can help customers to print or emboss logo if they want. We have excellent team, they will try them best to solve all your problems. We are trusted by many buyers from all over the world!
Flash Drive for Samsung Galaxy S7,S7Edge,S6,S6 Edge, S5,S4,S3,J7 ,J3,Note5,Note4,Note3,Note2,A5(2016),A7,A8,A9,C5,C7.LG V40,G4,Q7,LG Stylo3
About capacity display in computer :
8GB=approximately 6.9GB-7.3GB
16GB=approximately 14GB-15GB
32GB=approximately 28GB-30GB
64GB=approximately 56GB-60GB
128GB=approximately 119GB-124GB
This is calculation difference between manufacturer and your PC, please Google ‘USB FLASH DRIVE capacity’ to get more information.
Specifications
1. USB connection,support Hot plug & Play.
2. No external power supply .
3. Support different types of os.
4. Solid State Storage, Shock proof and electromagnetic proof.
5. Write protection switch
6. Durable data storage
7. Fast speed in write/read transfer
8. Hardware Requirement: Notebook,MAC,Type-C
Compatibility with:
For IOS: For iPhone5/5s/5c/6/6plus/6S/6S plus/7/7Plus/8/X
For iPad4/Air/Mini/Mini2
For Android: For Samsung S3/4/5,For Note2/3/4 and so on
Features:
1.External expansion for IOS/PC.
2.Support files Encryption.
3.Support manage Data directly on the i-FlashDrive.(Create, copy, move,delete, rename, open and so on)
4.Support Playback Videos/Music directly from i-FlashDrive.
5.Support Backup Contact information list.
6.Format support:common image format,such as MP3,MP4,Mov,MPEG-4,flv,RM,RMVB and other video and audio format.Maximum support 1080P.mp4 video format.
7.Support copy the file form mobile to i-Flash Driver HD.Support files Encryption/decryption in i-Flash Driver HD
8.i-Flash Driver HD is good equipment for TV fan,HD video,lossiess music lovers.
About Capacity:
8GB=approximately 7.4GB-7.6GB
16GB=approximately 14.4GB-14.8GB
32GB=approximately 28.5GB-30GB
64GB=approximately 58.5GB-60GB
128GB=approximately 110.5GB-120GB
Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB
calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB;
so there are some differences between display capacity and nominal capacity of flash memory product
Notice:
1. Do not Insert the pendrive with brute force and frequently,it is easy to damage the plug;
2. Do not pull the disk when access to data,or likely to cause data lose;try to pull it after disconnect disk;
3.Please make sure the max capacity your mobile or computer can support,if exceed the max capacity it can support,it can not read the pen drive.
Tips:
Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB
calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB;
so there are some differences between display capacity and nominal capacity of flash memory product
8G is about 7.2G -7.6GB;
16G is about 14-15GB ;
32G is about 28-29GB;
64G is about 58-59GB
