Storage Comparison
Capacity 256GB |
Sequential Read 2.9GB/s |
Sequential Write 1.4GB/s |
Form Factor M.2-2242 |
Interface PCIe |
Protocol NVMe |
Controller Cepheus 2 |
NAND 3D TLC (128L) |
Capacity 256GB |
Sequential Read 2.9GB/s |
Sequential Write 1.4GB/s |
Rand Read IOPS 285K IOPS |
Rand Write IOPS 285K IOPS |
Form Factor M.2-2242 |
M.2 Size 2242 |
M.2 Key M |
M.2 Type S2 |
Interface PCIe 3.0 x4 |
Protocol NVMe 1.3 |
Designer SK hynix |
Model Cepheus 2 |
Cores 2 |
Manufacturer SK hynix |
Codename V-NAND V6 |
Process Node 20nm |
Type 3D TLC (128L) |
Layers 128L |
Die Size 63mm² |
Die Capacity 512Gbit |
Die Bit Density 8.1Gbit/mm² |
NAND Chip Count 1 |
NAND Die Count 4 |
NAND Dies/Chip 4 |
AES-128 No |
AES-256 Yes |
TCG Opal 2.0 Yes |
IEEE 1667 No |
Power Loss Protection No |
MTBF 1.5M hours |
Avg Power 3.5W |
Idle Power 50mW |
Max Op Temp 70°C |
Min Non-Op Temp -40°C |
Max Non-Op Temp 85°C |
Height 22mm (0.87")Width 42mm (1.65")Depth 2.2mm (0.09") |
Weight 3.2g |
Manufacturer SK hynix |
Model BC711 |
Description 256GB M.2-2242 |
Part Number HFM256GD3HX015N |

