Archival product


S400u is available in a minature M.2 2242 form factor which provides a level of performance on par with bigger form factors. It is up to 20x faster than HDD. It is perfect as the main data storage and, when combined with a hard drive, also as a cost-effective cache.

Key features
  • Available capacities:
    120 GB 240 GB
  • M.2 form factor
    size 2242
  • SATA III (6 Gb/s) interface
  • TLC NAND flash technology
  • 3-year warranty limited by the TBW* parameter and free technical support


S400u is available in three different lengths: 2242, 2260 and 2280. This provides users with the flexibility of choice and guarantees compatibility with all platforms equipped with a compatible M.2 slot.


Each of the S400u form factors, provides sequential transfer speeds of up to 550 MB/s for read and 530 MB/s for write. This brings a significant performance improvement over traditional hard drive disks.


Just like other GOODRAM SSDs, S400 is based on the selected, highest quality NAND flash chips. Extensive quality control at every stage of production ensures reliability and data integrity. GOODRAM S400u is covered under 3-year manufacturer’s warranty.


* TBW (Total Bytes Written) – SSD durability, a parameter that determines the maximum amount of data that can be saved on a drive until the warranty expires. The TBW parameter is defined in the SSD product specifications.


120, 240 GB


SATA III (6 Gb/s). Backwards compatible with SATA II and I

Form factor

M.2 size 2242

Memory chips

TLC NAND flash


Phison S11

Operating temperature

0 - 70°C

Storage temperature

-45 - 85°C


42 x 22 x 3,5 mm


1Based on tests performed in ATTO Disk Benchmark 2.47 on SSD in FOB (fresh out of box) state. Parameters may vary depending on the computer configuration or SSD wear.
2Based on tests performed in Crystal Disk Mark 3.0.3 on SSD in FOB (fresh-out-of-box) state. Parameters may vary depending on the computer configuration or SSD wear.
3The warranty period ends on the date when the SSD has exceeded its TBW.
120 GB240 GB
Compressible data read (max.)1550 MB/s550 MB/s
Compressible data write (max.)1530 MB/s530 MB/s
Incompressible data read (max.)2550 MB/s550 MB/s
Incompressible data write (max.)2450 MB/s450 MB/s
TBW (TB)390180

Logistics data

S400u M.2 2242 120GB120 GBSSDSSDPB-S400U-120-425908267922873
S400u M.2 2242 240GB240 GBSSDSSDPB-S400U-240-425908267922880


The capacity for GOODRAM SSD is given in accordance with the IDEMA standard (LBA1-03). After formatting the drive, the capacity shown by the operating system may be lower than the advertised capacity.
Capacity in the specificationThe capacity visible in the operating system
120 GB111,79 GB
240 GB223,57 GB

GOODRAM reserves the right to change the specification at any time without prior information.

Form factor Size File
Software ZIP 42 MB
Product brochure PDF 0.1 MB
Manual PDF 1 MB
Photos ZIP 1 MB