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Toshiba Kioxia BG5 512GB M.2 2230 NVMe SSD circuit board

Toshiba

Toshiba Kioxia BG5 512GB 2230 NVMe laptop replacement part

SKU CH-3447-686HC

512 GB M.2 2230 NVMe SSD with PCIe 4.0 x4 interface delivering up to 3500 MB/s read and 2900 MB/s write speeds

  • Compact M.2 2230 form factor fits thin laptops
  • PCIe 4.0x4 interface delivers up to 3500 MB/s read speed
  • Up to 2900 MB/s write speed accelerates file transfers
  • 112-layer 3D TLC flash with NVMe 1.4 support
  • Low 4.3 W typical power draw extends battery life

Toshiba Kioxia BG5 512GB 2230 NVMe

This Toshiba Kioxia BG5 is a 512GB NVMe solid-state drive in the M.2 2230 form factor. It uses a PCIe 4.0x4 interface and 112-layer BiCS FLASH 3D TLC memory. The drive suits owners of Surface Laptop 3 or 4, Surface Go, X or 7+, and Steam Deck who need a direct replacement part. It is not compatible with Surface Pro 8 or 9 models.

PCIe 4.0x4 NVMe 1.4 with Host Memory Buffer

The drive leverages the NVMe 1.4 specification and Host Memory Buffer technology to reach sequential read speeds up to 3500 MB/s and write speeds up to 2900 MB/s. Active power consumption is rated up to 4.3 W typical. The compact 2230 size fits slim laptops and handheld devices where a full-length 2280 module cannot be installed.

Simple M.2 2230 slot installation

Installation requires an M.2 2230 key-M slot with PCIe 4.0x4 support and a single retaining screw. The main risk is attempting to fit the drive into a Surface Pro 8 or 9, which the supplier explicitly lists as incompatible. No software bundle or heatsink is included, so the host device must provide adequate airflow for the 4.3 W power envelope.

Highlights

  • Compact M.2 2230 form factor fits thin laptops
  • PCIe 4.0x4 interface delivers up to 3500 MB/s read speed
  • Up to 2900 MB/s write speed accelerates file transfers
  • 112-layer 3D TLC flash with NVMe 1.4 support
  • Low 4.3 W typical power draw extends battery life

Specifications

No published specifications for this item yet.

Questions about this item

Will the 112-layer BiCS FLASH memory need replacement under normal use?

The 112-layer BiCS FLASH 3D TLC memory is rated for typical SSD endurance and does not require scheduled replacement during the drive's service life.

What limits sustained write performance on this 512 GB drive?

Sequential write speed reaches up to 2900 MB/s, and the PCIe 4.0 x4 interface provides the bandwidth ceiling for sustained transfers.

How much heat and power does the drive produce during all-day operation?

Active power consumption is rated up to 4.3 W typical, which determines the thermal output during continuous workloads.

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