Zadak TWSG4S 512Gb SSD detailed specs

Posted on December 16, 2022 by Raymond Chen

Zadak's TWSG4S works on PCIe M.2 4.0 x 4. Read below about this NVMe SSD on this site.

Zadak TWSG4S 512Gb SSD detailed specs

TWSG4S (512Gb) produced by Zadak works on Phison PS5018-E18 controller. The TWSG4S comes equipped with 3D Nand memory. Zadak TWSG4S besides, available in 2 Tb and 1 Tb capacities.

Performance and benchmarks

Drive works on PCIe M.2 4.0 x 4 expansion standard with write speeds equals to 7000 MB/s, and maximum read speeds 7400 MB/s. It also has IOPS 1000000 on reading and 1000000 on writing operations per second.

Endurance and warranty

Zadak give 5 years warranty period limited by 1400 Total Bytes Written.


Category Value
Capacity 512 Gb
Interface M.2 4.0 x 4
Controller Phison PS5018-E18
Memory type 3D Nand
DRAM n/a
Read speed (Mb/s) 7400
Write speed (Mb/s) 7000
Read IOPS 1000000
Write IOPS 1000000
Endurance (TBW) 1400
MTBF (million hours) n/a
Warranty (years) 5


Zadak TWSG4S 512Gb support PCIe 4.0 that is significantly faster than PCIe 3.0. The write speed is 7000 Mbps, that is faster than has other rivals. The drive can write 1400 TBW, that is really good in comparison with closest rivals. Weighing all these factors, our site highly advise to purchase Zadak TWSG4S 512Gb for your PC.

+ Pros

  • Excellent writing speed
  • PCIe 4.0
  • Endurance

- Cons

  • Capacity

Buy this or similar SSD:

Video Review



The Zadak TWSG4S is DRAMless drive or data about it is unknown. Dynamic Random-Access Memory in their controller help to improve endurance and IOPS.

The Zadak TWSG4S due to the low density of memory chips able to operate without additional heat sinks. Some motherboards or laptops designed with thermal pads below and above the drive to improve productivity during times of heavy loads.

The TWSG4S 512Gb has sequential write speed 7000 Mb/s, sequential read speed 7400 Mbps. SSD run on Phison PS5018-E18 controller and M.2 4.0 x 4 interface standard. The memory type is 3D Nand.
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