Startechcom mini sas adapter dual sff 8643 to sff 8644 with full and low profile brackets 12gbps convert two internal sff 8643 ports into two external sff 8644 ports compatible with 12gbps sas drives and backward compatible with 6gbps sas and sata drives equipped with a full profile bracket and includes a half heightlow profile bracket for installation in small form factor computers this mini sas adapter lets you convert two internal sff 8643 ports on a controller card into two extern