Supermicro accessories for server chassis 16-port SAS/SATA hard drive backplane for 2U server chassis SC219A & SC213A, support up to 16x 2.5" hot-swap SAS/SATA hard drives. Mfg. part Number: Supermicro BPN-SAS-213A, bulk. Features: Supermicro BPN-SAS-213A Direct Attached Backplane features: • 3Gb/6Gb support • SES-2 Enclosure Management Support • SAS/SATA support • Four SFF-8087 connectors