Other than the NAND chips, there’s also a single Nanya NT5CC256W DRAM chip, which could either be a 256MB or a 512MB DDR3 buffer. Should you want to open the drive, the two parts of the shell come off using a flat screwdriver.

In our benchmarks using CrystalDiskMark, the SD700 hit 433MBps and 427MBps in read and write speeds respectively, which is about an order of magnitude faster than magnetic hard disk drives.Ĭompared to the SU800 though, which reached 563/508MBps in the same benchmark, it is a bit of a disappointment – although an expected one because of the limitations of USB and the overhead associated with having a USB-to-SATA bridge. The SD700 supports AES 256 Encryption and users can use this function through ADATA's “HDDtoGO” which can be downloaded from the website. A Type-C connector might have been preferable since most new high-end laptops come with these.Īdata throws in a three-year warranty, a rather thick but short cable, as well as a few software goodies including Macrium Reflect backup suite, an SSD toolbox, Acronis True Image HD and OS to Go. It connects to any host computers using a USB Type-A connector (v3.1 gen 1) meaning that the maximum theoretical transfer limit is 5Gbps, the same as that of v3.0.

Switching to 3D NAND ensures that the drive consumes even less power per unit storage, packs more bits per unit volume and heats up less (it was barely warm during our tests). That meant teaming the Silicon Motion SMI SM2258 controller with IMFT’s 384Gbit TLC 3D NAND flash modules and what Adata describes as a DRAM cache. It makes sense for Adata to use the same components to make the most of economies of scale. The drive is protected by a non-removable rubber ring and the electronics are enclosed by an aluminium chassis, with the ADATA logo and the word SSD displayed prominently on top, and a blue status light just below.ĬrystalDiskInfo recognised the drive as being the SU800 which we reviewed last year. A proper ruggedized storage drive if you’re looking for one. In other words, assuming that the USB port cover is firmly closed and secured in place, this is one of the most solid high capacity devices you can buy. It’s also tested to military grades (MIL-STD-810G 516.6) to withstand shock even when in use (although the cable might become loose or the connector might break).

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