Kioxia BG4 256Gb NVMe SSD technical specs

Posted on November 07, 2022 by Raymond Chen

Kioxia's BG4 internal SSD use PCIe M.2 3.0 x 4 2230 S3 expansion standard. Read below about this NVMe on our page.

Kioxia BG4 256Gb NVMe SSD technical specs

Kioxia's 256Gb BG4 NVMe SSD is powered by Toshiba. The BG4 comes equipped with Toshiba 3D TLC flash memory. This drive also available in three capacities, including 128 Gb, 1 Tb and 512 Gb.

Performance and benchmarks

Storage use PCIe M.2 3.0 x 4 2230 S3 with maximum read speeds 2300 MB/s, and sequential write speeds 1800 MB/s. BG4 has input/output performance 200000 on writing and 390000 on reading operations per second.

Endurance and warranty

Kioxia provide 5 years warranty for this product. As well it has 1.5 million hours MTBF.

Specs

Category Value
Capacity 256 Gb
Interface M.2 3.0 x 4 2230 S3
Controller Toshiba
Memory type Toshiba 3D TLC
DRAM n/a
Read speed (Mb/s) 2300
Write speed (Mb/s) 1800
Read IOPS 390000
Write IOPS 200000
Endurance (TBW) n/a
MTBF (million hours) 1.5
Warranty (years) 5

Conclusion

BG4 (256Gb) produced by Kioxia may work on PCIe Gen3 that is undoubtedly slower than PCIe Gen4. The write speed is 1800 Mb/s, that is slower than has most of rivals. Overall, Kioxia BG4 256Gb has more minuses and we strongly do not advise to purchase it.

+ Pros

  • None

- Cons

  • Slow writing speed
  • PCIe 3.0
  • Capacity

Buy this or similar SSD:

Video Review

The TINY 1TB SSD

FAQ

The Kioxia BG4 is DRAMless SSD or information about it is unknown. Dynamic random-access memory (DRAM) makes storage faster, but also more expensive.

The Kioxia BG4 256Gb due to the low density of memory chips can last without additional heat sinks. Some motherboards or laptops already has additional cooling below or above the storage to enhance productivity during high loads.

The BG4 256Gb has maximum write speed 1800 Mb/s, maximum read speed 2300 Mb/s. NVMe run on Toshiba controller and M.2 3.0 x 4 2230 S3 interface standard. The NAND flash memory type is Toshiba 3D TLC.
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