Hardware Spec Index

Novexa SN-4645 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Novexa · SKU SN4645-ULTRA · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index5,606 (SSDs scale)
Category rank#16,330
Street price$69
Power8 W (active)
Performance per dollar81.25
Released2022

Specifications

BrandNovexa
ModelNovexa SN-4645 Ultra
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,700 MB/s
Sequential write4,500 MB/s
Random 4K read1,150K IOPS
NAND3D TLC, 232-layer
CacheDRAM-less (HMB)
Endurance300 TBW (0.55 DWPD)
Warranty3 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

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Cite this page: Hardware Spec Index, “Novexa SN-4645 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/2372497 (accessed 2026-10-22).