HP P03706-S01. I can't find this exact part number anywhere for under $850:
HPE ML30 GEN9 E3-1230V6 HP RPS US (B - P03706-S01-BSTK - Z - CDW Internal Use/Service Pts - CDW.com
HPE ML30 GEN9 E3-1230V6 HP RPS US (B - P03706-S01-BSTK - Z - CDW Internal Use/Service Pts - CDW.com