Hardware Spec Index

Altrix PX-6556 Plus Quad M.2 PCIe 4.0 x16 Card

PCIe Cards & NVMe Enclosures · Altrix · SKU PX6556-PLUS · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index4,099 (PCIe Cards & NVMe Enclosures scale)
Category rank#23,953
Street price$239
Power12 W
Performance per dollar17.15
Released2025

Specifications

BrandAltrix
ModelAltrix PX-6556 Plus
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
CoolingPassive heatsink
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-2426 Max USB4 40Gbps NVMe Enclosure3,239$129Compare
Altrix PX-4327 Edge USB 3.2 Gen 2 NVMe Enclosure3,016$119Compare
Strivon PX-9859 Max PCIe 4.0 x16 Riser Cable3,300$149Compare
Strivon PX-9698 SE Quad M.2 PCIe 4.0 x16 Card4,297$269Compare
Veltrix PX-1092 XT PCIe 4.0 x16 Riser Cable1,729$49Compare
Tessarix PX-1643 Core USB 3.2 Gen 2x2 NVMe Enclosure1,960$59Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Altrix PX-6556 Plus Quad M.2 PCIe 4.0 x16 Card”, https://vextor7.com/item/21459280 (accessed 2026-10-26).