Biostar Z690 Valkyrie Review: Capable, but Overpriced Tech News Eulis December 6, 2021 The Biostar Z690 Valkyrie has four M.2 sockets and eight SATA ports, 105A VRMs, a last-gen premium audio codec and 2.5 GbE. At $599.99, it’s capable but overpriced. Go to Source Author: