Brand: Kioxia · SKU: KBG40ZNS256G · MPN: KBG40ZNS256G · Category: Storage
The Kioxia BG4 series (formerly Toshiba Memory) is a line-up of compact, single-package NVMe SSDs designed for ultra-thin computing and embedded applications. Utilizing Kioxia's 96-layer BiCS FLASH 3D TLC memory and a PCIe Gen3 x4 interface, the KBG40ZNS256G offers high-speed data transfer in an extremely small M.2 2230 form factor. It features Host Memory Buffer (HMB) technology, which utilizes a portion of the system memory to perform as if it had an onboard DRAM cache, reducing power consumption and cost while maintaining competitive performance levels. This drive is a popular choice for upgrading portable gaming consoles like the Steam Deck and compact ultrabooks like the Microsoft Surface Pro.
| MTBF | 1.5 Million Hours |
|---|---|
| Capacity | 256 GB |
| Interface | PCIe Gen3 x4, NVMe 1.3b |
| Form Factor | M.2 2230 (Single Sided) |
| NAND Flash Type | 96-layer BiCS FLASH 3D TLC |
| Random Read (4KiB) | Up to 330,000 IOPS |
| Random Write (4KiB) | Up to 190,000 IOPS |
| Sequential Read Speed | Up to 2,200 MB/s |
| Sequential Write Speed | Up to 1,400 MB/s |
| Power Consumption (Active) | 3.7 W (Typ.) |
| Warranty | 1 Year Limited OEM Warranty |
| Weight | 2.6g |
| Dimensions | 30.15mm x 22.15mm x 2.23mm |
An ultra-compact NVMe SSD utilizing 96-layer 3D TLC NAND, ideal for space-constrained devices like the Steam Deck and Surface Pro.
Yes, this Kioxia BG4 256GB NVMe M.2 2230 SSD (KBG40ZNS256G) is 100% genuine Kioxia hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Kioxia BG4 256GB NVMe M.2 2230 SSD includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the KBG40ZNS256G.