Hardware Spec Index

Altrix PX-3977 Ultra Quad M.2 PCIe 4.0 x16 Card

PCIe Cards & NVMe Enclosures · Altrix · SKU PX3977-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index4,874 (PCIe Cards & NVMe Enclosures scale)
Category rank#36,520
Street price$279
Power12 W
Performance per dollar17.47
Released2020

Specifications

BrandAltrix
ModelAltrix PX-3977 Ultra
TypeQuad M.2 PCIe 4.0 x16 Card
Host interfacePCIe 4.0 x16, requires x4/x4/x4/x4 bifurcation
Throughput4× ~7,000 MB/s
Drive supportM.2 NVMe 2230 / 2242 / 2260 / 2280
CoolingHeatsink + 40 mm fan
Bus powerSlot-powered
CompatibilityUEFI boot supported; check slot bifurcation

Related guides

NVMe SSDs ExplainedPCIe Lanes ExplainedPCIe 4.0 vs PCIe 5.0USB4 ExplainedThunderbolt 5 ExplainedPCIe 5.0 Explained

Similar PCIe Cards & NVMe Enclosures

ModelBenchmarkPriceCompare
Veltrix PX-2677 XT PCIe 4.0 x16 Riser Cable1,156$29Compare
Strivon PX-7616 Pro USB 3.2 Gen 2 NVMe Enclosure1,571$39Compare
Tessarix PX-3925 SE M.2 NVMe to PCIe 4.0 x4 Adapter871$19Compare
Veltrix PX-9722 Max Quad M.2 PCIe 5.0 x16 Card5,263$339Compare
Altrix PX-2121 Ultra Quad M.2 PCIe 4.0 x16 Card3,445$199Compare
Tessarix PX-8370 Max Dual M.2 PCIe Switch Card5,420$359Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Altrix PX-3977 Ultra Quad M.2 PCIe 4.0 x16 Card”, https://vextor7.com/item/17293102 (accessed 2026-10-24).