The ADATA's 2TB external hard drive HD72S and HD680, which one is good？

If you want to buy the 2TB external hard drive, maybe you can choose ADATA's HD680 and HD725. The 2TB external hard drive HD725 has an IP68 rating, which means it’s fully dustproof and waterproof. What’s more, it meets military-grade shock proofing standards with a robust triple-layer construction.

What's about the 2TB external hard drive HD725？

It holds up against shocks, drops, and vibrations thanks to military-grade shock proofing. Lesser external drives continue to operate when dropped, resulting in errors and bad sectors. The HD725 features shock sensors that stop drive activity when an impact is detected to prevent this. Featuring capacities of 1TB and 2TB, the 2TB external hard drive HD725 has plenty of room for your data, whether it be 4K videos or an archive of your work files.

In addition, it has a nifty groove that goes around its shell, serving as a convenient way to store the detachable USB cable. When not in use, simply disconnect the cable, and wrap it around the HD725. ADATA has tested it to the U.S. Military MIL-STD-810G 516.6 standard and can withstand falls from up to 1.8 meters. 

Then, what's about the 2TB external hard drive HD680？

The HD680 comes in your choice of black, blue, and yellow, to match your personality and other devices. It achieves this with a triple-layer construction that consists of a shock-absorbing silicone casing, sturdy buffer, and a cushioned mounting for the hard drive. When not in use, simply disconnect the cable, and wrap it around the 2TB external hard drive HD680. 

Dropping or bumping an HDD can result in errors and bad sectors. The 2TB external hard drive HD680 features shock sensors that notify you when impact or shaking has been detected with a red indicator light. AES 256-bit encryption keeps the data inside password-protected and away from prying eyes. Sporting a robust layered construction, shock sensors, and AES 256-bit encryption, the ADATA HD680 1TB/2TB External Hard Drive has you covered!

From：ADATA