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Rectangular 2.5-inch enterprise SSD, silver metal casing with label showing model and capacity

Kioxia

Kioxia KCM6XRUL7T68 7.68TB enterprise SSD

SKU CH-XYR5-86BT7 MPN KCM6XRUL7T68

7.68 TB NVMe enterprise SSD with up to 6900 MB/s sequential read, 1.4 M IOPS random read, dual-port design and power-loss protection for 24×7 workloads

  • Total capacity7.68 TB
  • Sequential read speedUp to 6,900 MB/s
  • Sequential write speedUp to 4,000 MB/s
  • Interface typePCIe 4.0 1 × 4, 2 × 2, NVMe 1.4
  • NAND flash typeBiCS FLASH TLC
  • Random read (4K)Up to 1,400,000 IOPS
  • 68 TB capacity handles large enterprise datasets
  • PCIe 4.0 x4 and NVMe 1.4 deliver 6900 MB/s sequential read
  • 4M random read IOPS accelerates transaction-heavy workloads
  • Dual-port U.3 design enables high-availability server deployments
  • 5 W idle and 20 W active power reduces data-centre energy use

Enterprise capacity and read-intensive design

The Kioxia CM6-R Series KCM6XRUL7T68 is a 7.68TB enterprise solid-state drive built for read-intensive server workloads. It uses proprietary 96-layer BiCS FLASH TLC memory with a Kioxia controller and firmware. The 2.5-inch, 15 mm Z-height form factor conforms to SFF-TA-1001 U.3 and works with tri-mode backplanes. Dual-port architecture supports high-availability deployments.

PCIe 4.0 x4 NVMe 1.4 interface

The drive connects through a PCIe 4.0 1x4, 2x2 interface compliant with the NVMe 1.4 specification. Sequential read reaches up to 6900 MBps while sequential write reaches up to 4000 MBps. Random 4KB read performance is rated up to 1,400,000 IOPS and random 4KB write up to 170,000 IOPS. This interface and performance profile determine whether the drive fits the target workload.

Power draw and thermal limits

Idle power consumption is 5W and active power consumption is 20W. The operating temperature range spans 0°C to 70°C with humidity tolerance from 5% to 95% RH. Shock resistance is rated at 9,800 m/s² for 0.5 ms and vibration resistance at 21.27 m/s² across 5 to 800 Hz. Six power modes help manage consumption during 24x7 operation.

How it compares

Measured against everything we stock in Server & Data Center SSDs, at today’s prices. Recalculated every night.

Price $1,321.99
Pricier than about 56% of the 1,039 comparable items (median $992.99).
Total capacity 7.68 TB
Higher than about 80% of the 522 comparable items (median 3.2 TB).
Sequential read speed Up to 6,900 MB/s
Higher than about 65% of the 311 comparable items (median 6,500 MB/s).
Price per TB $172.13 per TB
Cheaper than about 89% of the 522 comparable items (median $595.64 per TB).

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Specifications

Product
Brand nameKIOXIA
Product lineCM6-R Series
Model nameKCM6XRUL7T68
Total capacity7.68 TB
Performance
Sequential read speedUp to 6,900 MB/s
Sequential write speedUp to 4,000 MB/s
Random read (4K)Up to 1,400,000 IOPS
Random write (4K)Up to 170,000 IOPS
Storage
NAND flash typeBiCS FLASH TLC
Ports & slots
Interface typePCIe 4.0 1 × 4, 2 × 2, NVMe 1.4
Power
Idle power draw5 W
Active power draw20 W
Size & build
Overall height15 mm
Overall width69.85 mm
Product depth100.45 mm
Product weight130g
Shipping weight0.23 kg
Package size152 × 119 × 25 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Operating humidity range5% to 95% RH
Max shock tolerance9,800 m/s2 {1,000 G} (0.5 ms duration)
Vibration tolerance21.27 m/s2 {2.17 Grms} (5 to 800 Hz)

Questions about this item

How does the 7.68 TB capacity translate into usable space once the drive is installed in a server?

The drive presents 7.68 TB of raw capacity; the operating system will report a slightly lower figure due to binary-to-decimal conversion and the reserved area used for wear levelling and power-loss protection.

What does the PCIe 4.0 1x4, 2x2 interface actually limit in a live system?

The drive connects through a U.3 port using up to four PCIe 4.0 lanes, capping sequential throughput at the drive's rated 6,900 MB/s read and 4,000 MB/s write when the backplane and controller also support PCIe 4.0 x4.

Will the 15 mm Z-height fit in a standard 2.5-inch hot-swap bay?

Yes, the 15.00 mm height matches the SFF-TA-1001 U.3 form factor, so it slides into any 2.5-inch bay designed for 15 mm drives and works with tri-mode backplanes.

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