ADATA S599 Review

The S599 128GB model is now the cheapest SSD in the 128GB category for SandForce SSDs. It only consumes 8GB for over provisioning, which is much better than other drive’s 16GB allocation for this purpose. During our tests, the drive performed really well. When the test results came out, it nabbed the top sport as the fastest SandForce SSD that we have tested so far.

Its only real weak spot is its wrong advertising of 120GB when it only has around 111GB as usable storage and 120GB actual capacity. According to the company, the device’s advertised storage capacity refers to the NAND flash memory that it uses and though some memory cannot be used, this is made up for by the drive’s endurance, excellent performance, and write amplification.

The SF-1222 also features the popular TRIM as well as compatibility with Linux and Windows. TRIM is best known for collecting garbage, which can certainly benefit your drive in the long run as you use it more with time. SSDs, with their NAND configuration, you need to erase a bit of the flash chip physically before you can have more room for write cycles. They do not work like hard drives and other magnetic storage devices that allow new data to be overwritten over existing data.

Through TRIM, you will be informed if some blocks are already available after you delete some portions of the chip. It can also be used to completely clean up the flash chip if the drive is not tin use. This allows your drive to accommodate new data without a problem. Without TRIM, a lot of write cycles might have been wasted every time the OS is about to write data. This means TRIM also helps improve the write performance of the SSD.

Available capacities: 40/55/64/100/115/128/256 GB
Interface: SATA 3Gb/s
Read speed: 280 MB/s
Write speed: 270 MB/s