ASRock WRX90 WS EVO

The WRX90 WS EVO is ASRock's flagship workstation board for Threadripper PRO 7000 WX-series processors, matching ASUS's WRX90E-SAGE SE in PCIe slot count while taking its own approach to storage expansion via SlimSAS and MCIO ports.

Independent testing from Tom's Hardware documents a 24 power-stage VRM design for this board; ASRock does not officially publish an exact per-stage amperage figure, though the design is built for sustained Threadripper PRO WX-series workloads. Eight DDR5 ECC R-DIMM slots run in eight-channel mode, matching the memory bandwidth and capacity class of other WRX90-based boards in this catalog for the most demanding workstation applications. Seven full-length PCIe 5.0 x16 slots make this board class-leading for expansion-heavy workstation builds, and two onboard PCIe 5.0 M.2 slots are supplemented by SlimSAS/MCIO ports supporting up to four additional PCIe 5.0 SSDs via add-in cards. Dual 10GbE networking ports give this board redundant or link-aggregated high-throughput wired connectivity, a feature aimed at data-heavy workstation and server-adjacent deployments rather than typical desktop use. Against the ASUS Pro WS WRX90E-SAGE SE in this catalog, the WRX90 WS EVO matches the seven-slot PCIe count but adds dual 10GbE ports and SlimSAS-based storage expansion, appealing to builders who prioritize networking redundancy and flexible SSD scaling.