Hardware Spec Index

Novexa SN-4478 XT 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN4478-XT · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index5,526 (SSDs scale)
Category rank#36,261
Street price$69
Power6 W (active)
Performance per dollar80.09
Released2021

Specifications

BrandNovexa
ModelNovexa SN-4478 XT
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,300 MB/s
Sequential write4,000 MB/s
Random 4K read840K IOPS
NAND3D TLC, 218-layer
CacheDRAM-less (HMB)
Endurance300 TBW (0.55 DWPD)
Warranty3 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, “Novexa SN-4478 XT 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3544283 (accessed 2026-10-22).