ESD400 Portable SSD 512GB
A drive that shows the cost per gigabyte of flash storage is falling
The ESD400 is compact and speedy, and it packs in plenty of capacity at a competitive price.
£202 Manufacturer Transcend Information Inc, uk.transcend-info.com Dimensions 92x62x10.5mm Weight 56g Ports 1xUSB 3.0 Included USB 3.0 cable and cloth travel pouch This portable SSD doesn’t take the honour of the smallest and lightest drive of its kind from Freecom’s mSSD (see MacFormat 275), yet when weighing almost double amounts to just 56g, it’s still pocketable. Transcend has opted for a plastic enclosure with rounded edges. And like the mSSD, you need to carry the cable to connect it.
A USB 3.0 port gives you the best performance from the drive, which Transcend says can read data at up to 410MB/sec (we actually measured a peak rate of 435.9MB/sec). The drive peaked at 366.9MB/sec when writing, rather than the 380MB/sec stated. Averages when reading and writing sequentially were 363.3MB/ sec and 309.4MB/sec – similar to Freecom’s drive.
In the toughest test – randomly transferring small amounts of data – the ESD400 is slightly slower than the mSSD. Its mean averages of 138.1MB/sec when reading and 196.8MB/sec when writing, respectively, are still fast.
The ESD400 comes in larger capacities than the mSSD without the larger price tag (Amazon sold the 512GB model for £202, and the 256GB mSSD for £208). That compares well to a 500GB mSATA drive (around £185) and an enclosure for it (around £20). Alan Stonebridge
The ESD400 might look like
a traditional 2.5in drive, but check out the numbers.