KCM6XRUL3T84: Kioxia CM6-R 3.84TB PCIe Gen4 NVMe U.3 2.5-Inch Enterprise Solid State Drive
Also listed as: KCM6XRUL3T840, CM6-R 3.84TB, KCM61RUL3T84 · made by Kioxia
The Kioxia CM6-R 3.84TB is a high-volume enterprise PCIe Gen4 U.3 solid state drive featuring BiCS FLASH 96-layer 3D TLC NAND. With sequential read performance of 6,900 MB/s and 1.4 million random read IOPS, it serves as a primary workhorse drive in enterprise server farms. When shopping used CM6 drives, check smartctl health attributes, ensure the drive is running generic firmware if you plan to update it without OEM management tools, and verify that the 15mm casing fits your drive caddies.
Specifications
| Part number | KCM6XRUL3T84 |
|---|---|
| Brand | Kioxia |
| Made by | Kioxia |
| Type | SSDs |
| Other numbers | KCM6XRUL3T840, CM6-R 3.84TB, KCM61RUL3T84 |
| Status | current |
| Capacity (GB) | 3,840 |
| Interface | NVMe PCIe Gen4 U.3 (tri-mode backplane) |
| Form factor | SFF 2.5in, U.3 15mm |
| Endurance | Read Intensive, 1.0 DWPD |
| Generation fit | PCIe Gen4 enterprise server backplanes |
About the KCM6XRUL3T84
KCM6XRUL3T84 is Kioxia's widely deployed 3.84TB enterprise PCIe Gen4 x4 NVMe solid state drive from the CM6-R product family. Built on 96-layer BiCS FLASH 3D TLC NAND, it delivers up to 6,900 MB/s sequential read speed and 1,400,000 random read IOPS with dual-port failover support and 1 DWPD endurance. It served as the primary enterprise Gen4 workhorse across major OEM server lines, replacing the PCIe Gen3 CM5 series.
Compatibility
Fits small-form-factor 2.5-inch 15mm server bays equipped with U.3 or U.2 PCIe Gen4 NVMe connections. Supported in Dell PowerEdge 15G (R750, R650), HPE ProLiant Gen10 Plus, and Lenovo ThinkSystem V2 servers. It will not work in SATA-only or SAS-only bays. It requires a 15mm-capable drive sled.
How to identify a genuine unit
A genuine Kioxia retail drive carries a label reading KCM6XRUL3T84, CM6-R 3840GB, with dual-port NVMe PCIe 4.0 branding. In Linux, nvme id-ctrl displays model KCM6XRUL3T84. In Dell servers, it is sold under OEM part numbers such as 400-BJHZ with Dell-customized firmware.
Buying used
Check the drive's health status via nvme smart-log, verifying that spare blocks are at 100 percent and write endurance used is low. Ensure the dual-port mode jumper settings or firmware parameters match your server's single-port or dual-port backplane architecture.
Reference prices (last 14 days, updated 2026-10-27)
New: USD 380 (1 sighting, Oct 2026)
Used: USD 230 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| serversupply.com | new | USD 380 | 2026-10-27 | |
| ebay.com | used | USD 230 | 2026-10-27 |
Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.
Fits these models
Equivalent part numbers
- Dell 400-BJHZ Dell 3.84TB NVMe Gen4 CM6-R SSD
FAQ
What interface is supported by CM6-R?
PCIe Gen4 x4 single-port or x2/x2 dual-port NVMe over U.3.
What is the endurance rating of the 3.84TB CM6-R?
Rated at 1 DWPD for 5 years (7,008 TBW).
Buying or selling KCM6XRUL3T84?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Kioxia CM6-R Enterprise NVMe SSD Product Brief, checked 2026-10-27