Zadak TWSG4S 1Tb NVMe detailed specifications

Posted on December 22, 2022 by Raymond Chen

What memory type installed in Zadak TWSG4S 1Tb and other specifications explore on this site.

Zadak TWSG4S 1Tb NVMe detailed specifications

Zadak's 1Tb TWSG4S internal SSD is powered by Phison PS5018-E18. The TWSG4S comes equipped with 3D Nand memory. Zadak TWSG4S is offered also in 512 Gb and 2 Tb capacities.

Performance and benchmarks

Zadak TWSG4S use PCIe M.2 4.0 x 4 computer expansion bus standard with maximum write speeds equals to 7000 MB/s, and maximum read speeds 7400 Mbps. It also has IOPS 1000000 on reading and 1000000 on writing operations per second.

Endurance and warranty

Zadak give 5 years of warranty that limited by endurance 1400 TBW.


Category Value
Capacity 1 Tb
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 1Tb support PCIe 4 that is significantly faster than PCIe 3. The write speed is 7000 Mb/s, that is faster than has other competitors. The NVMe SSD provide possibility to write 1400 TBW, that is quite well in comparison with rivals. Overall, we strongly advise to purchase Zadak TWSG4S 1Tb for your PC.

+ Pros

  • Excellent writing speed
  • PCIe 4.0
  • Capacity
  • Endurance

- Cons

  • None

Buy this or similar SSD:

Video Review



The Zadak TWSG4S 1Tb has no DRAM or information about it is unknown. Dynamic Random-Access Memory makes SSD work faster, but more expensive.

The Zadak TWSG4S due to the low density of memory chips can operate with no extra cooling systems. Some laptops or motherboards designed with thermal pads below and above the drive for better performance during times of heavy loads.

The Zadak TWSG4S 1Tb has maximum write speed 7000 Mb/s, maximum read speed 7400 Mb per second. 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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