External Hard Drive USB 3.0 2.5" 500GB 1TB 2TB Unionsine Backup HDD Portable
This page is affiliate-supported. Prices and availability can change after the last marketplace refresh.
About this product
This UnionSine A3 external hard drive offers flexible storage capacities (160GB to 2TB, selected here as 1TB) in a 2.5-inch form factor, connecting via USB 3.0. It features a 5400 RPM HDD with an 8 MB cache, delivering read speeds of 140 MB/s and write speeds of 120 MB/s. Pre-formatted in exFAT, it supports a wide array of devices including PC, Mac, Android, Smart TV, and PlayStation/Xbox consoles. It's designed to be portable, rugged, and shockproof, includes an indication light, and comes with a 2-year manufacturer warranty.
Our take
The UnionSine A3 external hard drive is a versatile option for expanding storage across numerous platforms. The 1TB capacity (as selected) is a solid amount for most users, and the USB 3.0 interface ensures decent speeds for an HDD, with 140 MB/s read and 120 MB/s write. Its broad compatibility with everything from PCs and Macs to gaming consoles and smart TVs makes it highly adaptable. The rugged, shockproof design and a 2-year warranty are welcome features for peace of mind. However, being a 5400 RPM HDD, it won't offer the raw speed of an SSD, and the 8MB cache is standard but not exceptional. It's a reliable workhorse for general storage and backup.
Pros & Cons
Pros
- 1TB portable storage capacity
- Fast USB 3.0 interface (140/120 MB/s)
- Wide compatibility with many devices
- Rugged and shockproof design
- 2-year manufacturer warranty
Cons
- 5400 RPM rotation speed is average
- 8 MB cache is not very large
- No higher-speed SSD option
Specifications
- Choose color Blak
- choose capacity 1 TB
- Compatible With Android, Desktop/Notebook/Tablet, Laptop, Mac, PC, Playstation 4/5, Smart TV, Smartphone(need OTG), Window, Xbox one/360, Xbox X/S series
- USB Specification USB 3.0
- Color Black
- MPN A3-HDD
Show all 22 specifications
- Rotation Speed
- 5400 RPM
- Writable Format
- exFat
- Brand
- UnionSine
- Form Factor
- 2.5 in
- Type
- External Drive
- Read Speed
- 140 MB/s
- Drive Type(s) Supported
- HDD
- Manufacturer Warranty
- 2 Years
- Model
- A3
- Features
- Hot Plug Support, Indication Light, Low Noise Level, PlayStation 4 Compatible, Plug and play, Portable, RoHS Compliant, Rugged, Shockproof, USB Port, USB-Powered
- Storage Capacity
- 160GB/250GB/320GB/500GB/750GB/1TB/2TB
- Write Speed
- 120 MB/s
- Interface
- USB, USB 3.0
- Cache
- 8 MB
- Product Line
- Expansion
- Country of Origin
- China