Archival product


S400u is available in 2280 M.2 form factor without any adapter and heastink, to address the needs of customers who don’t require any bells and whistles. Like all SSDs, it’s much faster than traditional hard drives, making it a go-to solution for main storage.

Key features
  • Available capacities:
    120 GB 240 GB 480 GB
  • M.2 form factor
    size 2280
  • SATA III (6 Gb/s) interface
  • TLC NAND flash technology
  • 3-year warranty limited by the TBW* parameter and free technical support

2280 format

The S400u SSD is available in 22 x 80 mm size – the most popular for M.2. Thanks to this solution, S400u provides users with the flexibility of choice and enables them to choose the appropriate form factor for the given application.

Fast performance

The S400u SSD provides sequential read speed of up to 550MB/s and write speed up to 530MB/s. Such parameters make it possible to significantly improve the computer’s performance compared to computers based on hard drive disks.


All GOODRAM SSD, including S400u, are based on selected NAND flash chips which guarantee the highest level of quality. Multi-level quality control ensures stable drive operation and secure data storage. 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, 480 GB


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

Form factor

M.2 size 2280

Memory chips

TLC NAND flash


Phison S11

Operating temperature

0 - 70°C

Storage temperature

-45 - 85°C


80 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 GB480 GB
Compressible data read (max.)1550 MB/s550 MB/s550 MB/s
Compressible data write (max.)1530 MB/s530 MB/s530 MB/s
Incompressible data read (max.)2550 MB/s550 MB/s530 MB/s
Incompressible data write (max.)2350 MB/s450 MB/s410 MB/s
TBW (TB)390180350

Logistics data

S400u M.2 2280 120GB120 GBSSDSSDPB-S400U-120-80
S400u M.2 2280 240GB240 GBSSDSSDPB-S400U-240-80
S400u M.2 2280 480GB480 GBSSDSSDPB-S400U-480-80


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
480 GB447,13 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