UnionSine 500GB 2.5" Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one,Xbox 360-HD-2510(Black)

I actually bought two different 750 GB external Hard Drives (HDD). The UnionSine 750GB HDD is mounted in what resembles a metal heatsink. The entire case is all plastic and solid. I decided on HDD for 2 reasons. 1. I needed more than 500GB but 1 TB was too much. 2. I wanted drives for long term storage.HDD is different from an SSD (Solid State Drive) in that the HDD is a mechanical drive with spinning platter and a movable head. HDDs are not as rugged as SSD and they require more power (current). The UnionSine 750GB drive comes with a USB cable with a USB-A on the computer end and a USB Micro B on the drive end. This cable provides more power for the HDD This cable not only provides more power, it also increase the data transfer to drive if the computer has v 3.0 USB.An HDD will maintain the data for a longer period than SSD as long as it is not dropped, bumped, or josteled. An SSD drive basically charges and discharges internal solid state cells. The charge will last about a year or so if the SSD is left unpowered. For cloning and archiving, an HHD is better unplugged and stored away. An SSD should be powered every so often.The UnionSine 750GB came in it's own box with a 3 yr warranty. The HDD is an Hitachi Global Storage Tech drive. If you buy this exteranl HDD you may or may not get an Hitachi HDD. I am guessing they buy a batch of 2.5" drives at the best price so it could be any brand. I ran a HDD test and it came back with perfect status. Problem and/or weak sectors not found. No spin up nor data transfer errors. Internal temp was 20 degrees C.The S.M.A.R.T. came back passing all tests.Either drive will do a good job.

I bought this tiny hard drive mostly to back up stuff and shuttle files between my desktop and laptop, and so far I'm honestly shocked at how fast it feels. It's small enough to slide into any pocket or zipper in my bag-or even my jeans pocket-without crowding the space, which matters a lot to me. It couldn't be easier to use. I plugged it into my Windows 11 laptop, and the system welcomed it before I'd even finished looking for the cable. Perfect for students, weekend gamers, or honestly anyone chasing quick, budget-friendly pocket storage.

Have used for a few months now with no issues. If I continue to have no issues, I will buy another one. As a photographer, I need reliable external hard drives. This one is a back up that I use as a duplicate…. Will probably buy another one soon

Good in the sense of a hard drive. I needed something to store images and games on so this was fine. Knocked one star off because I bought the 500 GB one but it’s only 465 GB. Not a huge difference but it shouldn’t have a difference at all.Storage capacity:Less than advertised

I've had bad experiences losing precious memories on hardrives and solid state drives. So far, I like what I see from this. Transfer rate was quick. Fairly quiet and does not get overly hot. I think the quality is overall good value. My advice is to have your memories saved to multiple drives to prevent losing them. This could be a good additional drive for saving them.

I bought this Hard Drive mainly for backup and transferring files between my PC and laptop, and I’m really impressed with its performance.It’s incredibly compact, perfect for tossing into a bag or even a pocket. Great for portability.No setup needed. I plugged it into my Windows 11 laptop, and it was instantly recognized.Especially ideal for students, gamers, or anyone who needs portable storage without spending a fortune.

This hard drive is impressively portable, making it easy to carry for travel or daily use. The weight is light, yet the build feels solid, reflecting good drive quality. USB connectivity is fast and stable, ensuring smooth data transfers. Heat level stays low, even during long sessions, which helps improve reliability. A great choice for both personal and professional use.

Device is good, well priced, and does what it says it does. Make sure you read about the cabling for the if you decide to buy it. I just assumed it was USB-C. It uses a weird cable I'm unfamiliar with that ends in a USB-A male (big rectangular).My laptop doesn't have any USB-A jacks and hasn't had any for years, so I had to drop a couple bucks on an adapter (USB-A to USB-C). And I'm a little nervous that if I lose their little custom cable I won't be able to use the device anymore without buying some special cable.Oh well. It works and the price is right.