I bought one 64gb and it has printed the same but it actually has 32gb when i looked into my windows system. why is it so?

Have you looked at how the flash drive is set up? There's an outside chance that it merely has 1 primary partition set up as 32gb and 'unallocated' space that is the other half of your storage. For this you'll need to look at the drive with Disk Management in Windows to see how partitions are configured.

Is the usb-a connector backwards compatible with usb 2.0 ports?

Yes, it should be but without the same transfer speed as 3.0.

How many pictures will the 256gb sandisk hold?

A 256 GB Flash Drive will hold roughly 150,000 pictures. Or, it will hold about 50,000 pictures and 35-40 hours of movies together. At least according to my math from investigating data about this.

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SanDisk Ultra Dual Drive Go USB Type-C Flash Drive 512GB (Memory stick with Reversible Type-C and Type-A connectors for Android Smartphone, Tablets and Mac, up to 400 MB/s) Black

Product ID: 201058913

Details

Brand
SanDisk
Hardware interface
USB Type C
Memory storage capacity
512 GB
Special feature
Reversible.
Write speed
150

⚡400 MB/s high-speed transfer

🔄2-in-1 reversible USB-C & USB-A

🖤Sleek swivel design with keyring hole

R$1484

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Unlock seamless speed & style—your ultimate dual-drive companion!

COMPACT STYLISH - Sleek black swivel design protects connectors and fits perfectly on your keyring for ultimate portability.
MASSIVE 512 GB STORAGE - Carry your entire digital life in your pocket—store thousands of files, photos, and videos without compromise.
AUTOMATIC PHOTO BACKUP - Never lose a memory—SanDisk Memory Zone app backs up your photos seamlessly on the go.
LIGHTNING FAST TRANSFERS - Move massive files in seconds with blazing 400 MB/s read speeds—because your time is money.
DUAL CONNECTOR POWERHOUSE - Effortlessly switch between USB-C smartphones, tablets, Macs, and USB-A computers without missing a beat.

The SanDisk Ultra Dual Drive Go 512GB is a versatile USB 3.2 Gen 1 flash drive featuring reversible USB-C and USB-A connectors for effortless file transfers between modern smartphones, tablets, Macs, and traditional computers. With up to 400 MB/s read speeds, automatic photo backup via the SanDisk Memory Zone app, and a sleek swivel design with keyring hole, it combines high performance, convenience, and portability in one compact device.

Specifications

ASIN	B0859NR7KY
Best Sellers Rank	31 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 2 in USB Flash Drives
Box Contents	1 product
Brand Name	SanDisk
Colour	Go Black
Compatible Devices	Mobile, Tablet
Compatible Phone Models	Various USB-A models, Various USB-C smartphone models
Customer Reviews	4.5 4.5 out of 5 stars (50,678)
EU Spare Part Availability Duration	1 Years
Flash Memory Type	USB_FLASH_DRIVE
Global Trade Identification Number	00619659180140
Hardware Connectivity Technology	USB Type C
Hardware Interface	USB Type C
Item Dimensions D x W x H	16D x 10W x 10H centimetres
Item Weight	8 Grams
Manufacturer	SanDisk
Manufacturer Part Number	SDDDC3-512G-G46
Memory Storage Capacity	512 GB
Model Name	Ultra Dual Drive
Model Number	SDDDC3-512G-G46
Network Connectivity Technology	USB
Number of Items	1
Number of Packs	1
Product Features	Reversible.
Product Warranty	2 year manufacturer
Read Speed	150 Megabytes Per Second
UPC	619659180140
Unit Count	1.0 count
Write Speed	150

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