Hardware Spec Index

Veltrix PX-6646 Ultra M.2 NVMe to PCIe 4.0 x4 Adapter

PCIe Cards & NVMe Enclosures · Veltrix · SKU PX6646-ULTRA · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index5,122 (PCIe Cards & NVMe Enclosures scale)
Category rank#43,792
Street price$349
Power6 W
Performance per dollar14.68
Released2019

Specifications

BrandVeltrix
ModelVeltrix PX-6646 Ultra
TypeM.2 NVMe to PCIe 4.0 x4 Adapter
Host interfacePCIe 4.0 x4 (passive)
ThroughputUp to 7,500 MB/s (drive-limited)
Drive supportM.2 NVMe 2230 / 2242 / 2260 / 2280
CoolingPassive heatsink
Bus powerSlot-powered
CompatibilityUEFI boot supported; check slot bifurcation

Related guides

NVMe SSDs ExplainedPCIe Lanes ExplainedUSB4 ExplainedThunderbolt 5 ExplainedPCIe 5.0 Explained

Similar PCIe Cards & NVMe Enclosures

ModelBenchmarkPriceCompare
Altrix PX-8987 Edge Quad M.2 PCIe 4.0 x16 Card3,272$149Compare
Strivon PX-4310 Prime M.2 NVMe to PCIe 4.0 x4 Adapter841$19Compare
Strivon PX-5928 Core M.2 NVMe to PCIe 4.0 x4 Adapter1,080$29Compare
Veltrix PX-6567 Ultra PCIe 4.0 x16 Riser Cable4,291$229Compare
Veltrix PX-2722 Pro M.2 NVMe to PCIe 4.0 x4 Adapter1,935$59Compare
Veltrix PX-2976 Plus Thunderbolt 5 NVMe Enclosure4,196$279Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Veltrix PX-6646 Ultra M.2 NVMe to PCIe 4.0 x4 Adapter”, https://vextor7.com/item/82327040 (accessed 2026-10-26).