1) It can't connect the SAS hard disk to normal SATA motherboard. (it will be worked if your motherboard has the SAS chipsit, Otherwise can't work.)
2) It can't connect the SATA hard disk to normal SAS motherboard. (it will be worked if your hard disk has the SAS chipsit, Otherwise can't work.)
3) It can connect the SATA hard disk to SATA motherboard; It can connect the SAS hard disk to SAS motherboard.
4) The SFF-8482 is a connector design for interfacing a connection for SAS drives, both SAS Hard drives and SAS SSD drives.
Angled Connector Design: The angled type connector allowing you to connect the cable to a female port, even if space around the port is limited; No more need to twist your cables, so now you have a straight connection to your cable and better quality signal to your device.