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Toshiba(Kioxia) 256GB PCIe NVMe 2230 SSD (KBG40ZNS256G) (OEM), 30mm
44

Toshiba(Kioxia) 256GB PCIe NVMe 2230 SSD (KBG40ZNS256G) (OEM), 30mm

Bottom line: The 44 Toshiba 256GB PCIe NVMe 2230 SSD: 2,200 MB/s read, 1,400 MB/s write over PCIe Gen3 x4; main trade-off: OEM pull from new laptops, no retail box or maker warranty.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For SSDs and PC storage upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ 2,200 MB/s read, 1,400 MB/s write over PCIe Gen3 x4
  • ✓ Tiny M.2 2230 (30mm) form factor fits Steam Deck and ROG Ally
  • ✓ 330K read / 190K write IOPS for snappy small-file access
  • ✓ 1.5 million-hour MTTF endurance rating

Cons

  • ✗ OEM pull from new laptops, no retail box or maker warranty
  • ✗ PCIe Gen3 x4 caps speed where Gen4 drives run about 2x faster
  • ✗ 256GB fills quickly with large modern game installs
  • ✗ 2230 length only fits 30mm slots, not standard 2280

Manufacturer description

The solid state drive was pulled from BRAND NEW laptops for upgrade purpose. The SSD has been wiped and formatted. It works with all brand laptops with a PCIe interface (SSD length 30mm). Capacity: 256GB Interface: PCIe Gen3 x4 Maximum Interface Speed: 32 GT/s (PCIe Gen3 x4) Sequential Read up to (MB/s): 2,200 Sequential Write up to (MB/s): 1,400 Random Read up to (IOPS): 330K Random Write up to (IOPS): 190K MTTF: 1,500,000 HOURS

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SpecPicks Verdict

SpecPicks scored 44 Toshiba 256GB PCIe NVMe 2230 SSD using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. 44's ssds & storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • ?Model?KBG40ZNS256G
  • ?Digital Storage Capacity?256GB
  • ?Hardware Interface?PCI Express
  • ?Form Factor?M.2 2230
  • ?OEM?The SSD was pulled from BRAND NEW laptops for upgrade purpose. The SSD has been wiped and formatted. OEM packaging
  • Memory storage capacity: 256.0

Full Specifications

Brand44
Weight256g
Model NameKBG40ZNS256G
Read Speed2200 megabytes_per_second
Unit Count1 Count
Form FactorM2
Media Speed1400 megabits_per_second
Model NumberKBG40ZNS256G
Built-In MediaSolid State Drive
Hard Disk Size256 GB
Hard disk size256.0 GB
Hard-Drive Size256 GB
Number of Items1
Special FeaturePortable
Hardware Platformlaptop
Installation TypeInternal Hard Drive
Compatible DevicesLaptop
Data Transfer Rate2200 megabytes_per_second
Enclosure MaterialNand Flash
Additional FeaturesPortable

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Toshiba(Kioxia) 256GB PCIe NVMe 2230 SSD (KBG40ZNS256G) (OEM), 30mm is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Toshiba(Kioxia) 256GB PCIe NVMe 2230 SSD (KBG40ZNS256G) (OEM), 30mm
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