Specifications
MPN
KCD81RUG3T84
SIE Model
KCD8XRUG3T84
SED Model
KCD8DRUG3T84
Capacity
3,840 GB (3.84 TB)
Form Factor
2.5-inch, 15 mm thickness (U.3)
Interface
PCIe 4.0, NVMe 1.4
Max Interface Speed
64 GT/s (Gen4 x4)
Sequential Read
up to 7,200 MB/s (128 KiB)
Random Read
up to 1,250K IOPS (4 KiB)
Random Write
up to 195K IOPS (4 KiB)
Flash Memory
KIOXIA 112-layer BiCS FLASH 3D TLC
Endurance
1 DWPD (read intensive, 5-year warranty)
Power (Active)
14 W typ.
Power (Ready)
5 W typ.
Supply Voltage
12 V ±10%, 3.3 V ±15%
Temperature (Operating)
0 °C to 74 °C
MTTF
2,500,000 hours
Data Protection
Power loss protection, end-to-end data correction
Security Options
SIE and SED model variants
KIOXIA CD8-R 3.84TB alternatives
| MPN | Model | Interface | Form Factor |
|---|---|---|---|
| KCD81RUG3T84 | KIOXIA CD8-R 3.84TB | PCIe 4.0 | 2.5in 15mm U.3 |
| KCD8XRUG3T84 | KIOXIA CD8-R 3.84TB SIE | PCIe 4.0 | 2.5in 15mm U.3 |
| KCD8DRUG3T84 | KIOXIA CD8-R 3.84TB SED | PCIe 4.0 | 2.5in 15mm U.3 |
| MTFDKCC3T8TFR | Micron 7450 PRO 3.84TB | PCIe 4.0 | U.3 15mm |
| MZQL23T8HCLS-00A07 | Samsung PM9A3 3.84TB | PCIe 4.0 | U.2 7mm |
Use Case
3.84 TB is the most common CD8-R capacity for mixed read-heavy node builds: enough room for a working data set, low enough cost to populate every bay. At 14 W active it is also the point where power per terabyte drops sharply versus the 1.92 TB part, which matters when a rack is power-capped rather than bay-capped.
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