what is the difference between M3 and H3?

From the http://www.transcend-info.com. The H3 is tested to the U.S. military drop-test standards MIL-STD-810F.The M3 is tested to the U.S. military drop-test standards MIL-STD-810G 516.6.That is the only difference I saw.

will this work with my android tablet? I have a samsung galaxy note pro with 4.4/kitkat.

works with my Android tablet, also works as external drive for my Samsung smart blueray player, and WD TV Live Streaming Media Player

Does this work with laptops? How many USB ports does it need to run?

Works great. I've got 5 of these, one of which I've been using since 2010 (an earlier slimmer model though, but still padded like this). All still working perfectly well. It requires only one USB port and works best with USB 3.0 ports. Even thinking of getting a 6th one

how long is the usb cable?

USB Cable is about 18 inches long.

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Transcend TS4TSJ25H3B 4 TB StoreJet 25H3P rugged 2,5inches USB 3.1 Gen 1 Interface Navy Blue, Silver

Product ID: 253693703

Details

Brand
Transcend
Colour
Silver
Compatible devices
Desktop
Connectivity technology
USB
Digital storage capacity
4 TB
Hard disk description
Mechanical

⚡USB 3.1 Gen 1 with UASP - blazing fast transfers

💾4TB storage - massive space for all your files

🛡️3-stage shock protection - rugged durability

R10355

Duties & taxes included

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💼 Secure your digital empire with speed and rugged style!

MASSIVE 4 TB STORAGE CAPACITY - Store your entire digital life—work projects, media libraries, and backups—all in one sleek, portable drive.
ONE TOUCH AUTO BACKUP BUTTON - Effortlessly secure your files with a single press—perfect for busy professionals who value seamless data protection.
RUGGED 3 STAGE SHOCK PROTECTION - Engineered to survive accidental drops and bumps, keeping your data safe wherever your hustle takes you.
BLAZING FAST USB 3 1 GEN 1 INTERFACE - Experience lightning-speed data transfers with UASP support, cutting down wait times and boosting productivity.
TRANSCEND ELITE RECOVERY SOFTWARE INCLUDED - Manage, back up, and recover your data like a pro with powerful, user-friendly software tailored for your needs.

The Transcend TS4TSJ25H3B StoreJet 25H3P is a rugged 2.5-inch external hard drive featuring a USB 3.1 Gen 1 interface with UASP for fast data transfer, a massive 4TB capacity, and a three-stage shock protection system. It includes a one-touch auto backup button and comes bundled with Transcend Elite data management and recovery software, making it an ideal choice for professionals seeking reliable, high-capacity portable storage.

Specifications

ASIN	B078YGB7DJ
Additional Features	Shock-resistant for superior durability
Best Sellers Rank	#25,518 in Computers ( See Top 100 in Computers ) #108 in External Hard Drives
Brand	Transcend
Built-In Media	The Product
Cache Memory Installed Size	1
Color	Silver
Compatible Devices	Desktop
Compatible Video Game Console Models	Microsoft Xbox 360
Connectivity Technology	USB
Customer Package Type	Standard Packaging
Customer Reviews	4.5 4.5 out of 5 stars (4,411)
Data Transfer Rate	625 Gigabits Per Second
Digital Storage Capacity	4 TB
Enclosure Material	Metal
Form Factor	2.5-inch
Global Trade Identification Number	00760557840596
Hard Disk Description	Mechanical Hard Disk
Hard Disk Form Factor	2.5 Inches
Hard Disk Interface	Serial ATA-600
Hard Disk Rotational Speed	5400 RPM
Hard-Drive Size	4 TB
Hardware Connectivity	USB 2.0
Hardware Platform	Mac, PC
Installation Type	External Hard Drive
Item Dimensions L x W x Thickness	33.5L x 20.5W x 4.8Th centimeters
Item Type Name	4TB USB 3.1 Gen 1 StoreJet 25H3B SJ25H3B Rugged External Hard Drive - TS4TSJ25H3B
Item Weight	0.65 Pounds
Manufacturer	Transcend
Media Speed	78 MB/s
Mfr Part Number	TS4TSJ25H3B
Model Name	TS4TSJ25H3B
Model Number	TS4TSJ25H3B
Number of Items	1
Read Speed	520 Megabytes Per Second
Specific Uses For Product	Persönlich, Gaming, Geschäft
UPC	760557840596
Unit Count	1 Count
Warranty Description	2 year manufacturer

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