My ML30 Gen9 came with LFF Drive blanks   I'm thinking this should work: http://www.ebay.com/itm/3-5-Drive-Tray-Caddy-4-HP-Proliant-ML350e-ML310e-SL250s-Gen8-Gen9-G9-651314-001-/231001449171   Anyone try these before in the Gen9's ?