Hardware Spec Index

Novexa SN-9921 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN9921-ULTRA · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index14,558 (SSDs scale)
Category rank#3,635
Street price$549
Power8 W (active)
Performance per dollar26.52
Released2022

Specifications

BrandNovexa
ModelNovexa SN-9921 Ultra
Capacity4 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,200 MB/s
Sequential write5,400 MB/s
Random 4K read1,090K IOPS
NAND3D TLC, 176-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

Similar SSDs

ModelBenchmarkPriceCompare
Altrix SN-6085 Prime 2TB PCIe 4.0 NVMe M.2 2280 SSD8,470$179Compare
Mirenta SN-8810 Core 1TB PCIe 4.0 NVMe M.2 2280 SSD9,859$219Compare
Mirenta SN-7630 Max 500GB PCIe 4.0 NVMe M.2 2280 SSD6,431$89Compare
Mirenta SN-6790 Max 1TB PCIe 4.0 NVMe M.2 2280 SSD9,000$249Compare
Strivon SN-6054 XT 2TB PCIe 5.0 NVMe M.2 2280 SSD11,492$369Compare
Strivon SN-2310 Prime 8TB PCIe 4.0 NVMe M.2 2280 SSD12,605$349Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Novexa SN-9921 Ultra 4TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/5052 (accessed 2026-10-19).