Asus WS Z390 Pro — Workstation motherboard with beefy VRMs and a PLX chip. Only SLI supporting board capable of 4 slot spacing on Z390 that includes a PLX chip.
$225 shipped

Borderlands 3 code…

Asus WS Z390 SLI Workstation, Borderlands 3($20), NVLink bridges, AKG 7XX headphones, tvs and more.

Source: [H]ardOCP – Asus WS Z390 SLI Workstation, Borderlands 3(), NVLink bridges, AKG 7XX headphones, tvs and more.