Could you give me a realistic idea of the "write" speed for the 32GB please? (with usb2or3 port but not benchmark tests or supplier quotes) thanks.

18mb/s i tested this 32gb, that's why its not listed and just says 15x usb 2. They get very hot, they work on the device im using for about 2 years when contacts are worn out after plug in and out few times a week random. Sadly the device i use cannot use more than 32gb/s else i would not buy them

The 128gb scandisk usb3 clip on: for the keychain. Is this metal or plastic? Its a bit difficult to tell from the picture.

Item = 'SanDisk Ultra Flair 128 GB USB 3.0 Flash Drive'. The handle is plastic. Overall, the drive is pretty-small & doesn't look too hardy to me, so I personally wouldn't put it in a keyring (at least, not continuously).

Bought 64gb. but ony 57.2gb available. How is it acceptable? Isn't this false advertising? 7gb lower than the advertised capacity.

Dear Amazon Customer, I am Chris from SanDisk® Customer Care. I understand that you would like to understand why the actual capacity of your 64GB USB appears to be less. A portion of the total capacity is used to store certain functions including optimizations of the memory that support performance and endurance and therefore is not available for user storage. This is disclosed on our packaging and marketing materials when you see the statement "Actual user storage less." As a leader in flash storage technology, SanDisk offers multiple products at different speeds and capacities to address a variety of consumer needs. To provide the optimum product for you, we're continuously improving and updating our technology, products, firmware, and design. Continual improvements and updates are made to our product (both new products and existing product lines) and can include changes to the basic file structure, formatting and other functions. These optimizations may result in variances as to the amount of memory space that is available for user storage, but are essential to performance and endurance of the products. https://kb.sandisk.com/app/answers/detail/a_id/46 If you require more information, please do not hesitate to contact us at english_support@sandisk.com quoting the day you have posted your comment. Thank you for your interest in our products and have a good day. Regards, Chris SanDisk Customer Care

Is this compatible with windows 10 and when you first insert it into the USB do you need to do anything e.g formatting etc. ?

Dear Eva, My name is Shira from SanDisk Customer Care. I would like to inform you that the drive should be working fine with Windows 10. Also, it is preformatted and ready for use immediately. If you have any additional questions regarding our products you may contact us via our support email: english_support@sandisk.com and provide us with the date of this post. Best regards, Shira SanDisk Global Customer Care

Read speed	150 Megabytes Per Second
Connectivity technology	USB
Colour	Black
Product dimensions	15D x 10W x 8H centimetres
Flash memory type	USB
Manufacturer	SanDisk
Hardware Connectivity Technology	USB Type A
UPC	619659154189
Global Trade Identification Number	00619659154189
Item model number	SDCZ73-256G-G46
RAM Size	256 GB
Hard Drive Size	256 GB
Hard Disk Description	HDD
Wattage	5
Power Source	Hand-operated
Hardware Platform	PC, Mac
Operating System	windows
Are Batteries Included	No
Lithium Battery Packaging	Batteries contained in equipment
Lithium Battery Weight	2.5 Grams
Number of Lithium Metal Cells	1
Item Weight	5 g
Guaranteed software updates until	unknown

SanDisk Ultra Flair USB 3.0 Flash Drive 256GB, USB stick (Memory stick with transfer speeds up to 150 MB/s, Password protection, Durable, Sleek Metal Casing) Silver/Black

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