Hardware Spec Index

Mirenta SN-8638 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Mirenta · SKU SN8638-XT · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index13,473 (SSDs scale)
Category rank#29,603
Street price$539
Power7 W (active)
Performance per dollar25.00
Released2020

Specifications

BrandMirenta
ModelMirenta SN-8638 XT
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read5,000 MB/s
Sequential write4,500 MB/s
Random 4K read780K IOPS
NAND3D TLC, 232-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 years
HeatsinkNone

Related guides

NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 4.0 vs PCIe 5.0

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Cite this page: Hardware Spec Index, “Mirenta SN-8638 XT 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/94555783 (accessed 2026-10-22).