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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128GB Ultra Dual Drive Go USB Type-C Flash Drive, Black - SDDDC3-128G-G46

Product ID: 181769874

Details

Brand
Sandisk
Hardware Interface
USB 3.1 Type A
Memory Storage Capacity
128 GB
Special Feature
Reversible
Write Speed
150

⚡150MB/s high-speed USB 3.1 Gen 1 read

📱Seamless smartphone & tablet compatibility

🔄2-in-1 reversible USB Type-C & Type-A

€ 48.22

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Dual-drive speed and versatility for the modern multitasker

SLEEK SECURE DESIGN - Swivel connector protects ports and a keyring hole keeps your drive ready for on-the-go productivity.
LIGHTNING FAST TRANSFERS - Experience blazing 150MB/s read speeds to move your content in seconds, not minutes.
DUAL CONNECTOR POWERHOUSE - Effortlessly switch between USB-C and USB-A devices without adapters or hassle.
SMARTPHONE STORAGE SAVIOR - Instantly free up space and back up your photos with the SanDisk Memory Zone app.
TRUSTED DURABILITY WARRANTY - Backed by a 5-year limited warranty and SanDisk’s renowned reliability for peace of mind.

The SanDisk 128GB Ultra Dual Drive Go is a versatile 2-in-1 USB flash drive featuring reversible USB Type-C and traditional Type-A connectors. It delivers high-performance USB 3.1 Gen 1 speeds up to 150MB/s for fast file transfers across smartphones, tablets, Macs, and PCs. Designed for professionals on the move, it supports seamless smartphone storage expansion and automatic photo backup via the SanDisk Memory Zone app. Its swivel design protects connectors and includes a keyring hole for portability, all backed by a 5-year limited warranty.

Specifications

ASIN	B07YYJRXQR
Additional Features	Reversible
Best Sellers Rank	#12 in USB Flash Drives
Brand	Sandisk
Color	Black
Compatible Devices	Mobile, Tablet
Connectivity Technology	USB
Customer Reviews	4.5 4.5 out of 5 stars (38,661)
Flash Memory Type	USB
Global Trade Identification Number	00619659177201
Hardware Connectivity Technology	USB Type C
Hardware Interface	USB 3.1 Type A, USB Type C
Item Dimensions D x W x H	0.34"D x 0.48"W x 1.75"H
Item Weight	3.7 g
Manufacturer	SanDisk
Memory Storage Capacity	128 GB
Mfr Part Number	SDDDC3-128G-G46
Model Name	Dual Drive Go USB Type C
Model Number	SDDDC3-0128G-G46
Number of Items	1
Read Speed	400 megabytes_per_second
UPC	619659177201
Unit Count	1 Count
Warranty Description	5 year limited manufacturer
Write Speed	150

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