Hardware Spec Index

Mirenta SN-6646 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Mirenta · SKU SN6646-ULTRA · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index12,145 (SSDs scale)
Category rank#22,604
Street price$389
Power6 W (active)
Performance per dollar31.22
Released2022

Specifications

BrandMirenta
ModelMirenta SN-6646 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,300 MB/s
Sequential write4,500 MB/s
Random 4K read900K IOPS
NAND3D TLC, 232-layer
CacheDDR4 DRAM, 4 GB
Endurance2,400 TBW (0.33 DWPD)
Warranty5 years
HeatsinkHeatsink edition available

Related guides

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

Similar SSDs

ModelBenchmarkPriceCompare
Mirenta SN-9853 SE 2TB PCIe 4.0 NVMe M.2 2230 SSD8,701$169Compare
Strivon SN-8321 Ti 8TB PCIe 5.0 NVMe M.2 2280 SSD12,535$419Compare
Altrix SN-3704 Core 2TB PCIe 4.0 NVMe M.2 2230 SSD12,807$459Compare
Caldera SN-3341 XT 2TB PCIe 4.0 NVMe M.2 2280 SSD7,428$159Compare
Caldera SN-2882 Pro 2TB PCIe 4.0 NVMe M.2 2280 SSD12,808$469Compare
Mirenta SN-8705 Max 2TB PCIe 4.0 NVMe M.2 2280 SSD9,049$169Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Mirenta SN-6646 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/32327072 (accessed 2026-10-23).