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ETA Date: 9/15/2026.
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IO Crest SY-PEX50133 SouthBridge Max PCIe 4.0 x4 Multi-Function Expansion Card - 4x M.2 NVMe, 4x SATA III, 2x USB-C (20G/10G), 2x USB-A (10G), No Bifurcation Required

  • Turn a single PCIe 4.0 x4 slot into 12 new ports - four M.2 NVMe, four SATA III, and four USB - without splitting lanes or touching your BIOS
  • Built on a full AMD B650 chipset instead of a basic controller chip, so you get rock-solid stability and true plug-and-play support across Windows, Linux, and macOS
  • The easy way to massively expand storage for NAS builds, media servers, and multi-drive workstations without a full motherboard upgrade
  • Four M.2 M-Key slots with intelligent bandwidth allocation automatically balance speed across drives, maximizing throughput whether you're running one SSD or four
  • Four 6 Gb/s SATA ports add room for traditional HDDs and SSDs right alongside your NVMe drives
  • Two USB-C ports (one at 20 Gbps, one at 10 Gbps) plus two 10 Gbps USB-A ports deliver high-speed connectivity for external drives and peripherals
  • No bifurcation, no BIOS configuration, no driver headaches - just install and go
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Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
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