The QXP SATA expansion cards are designed for QNAP's TL series JBOD storage enclosures that support SATA drives. Expand storage capacity easily by installing a QXP SATA expansion card into the PCIe slot of a QNAP NAS or Windows / Ubuntu (Linux) PC, and then connect the TL series JBOD storage enclosures using an SFF-8088 (or SFF-8644) cable. The low-profile card form-factor allows QXP SATA expansion cards to be compatible with a wide variety of NAS, computers, and servers. Each SFF-8088 or SFF-8644 connector on the QXP SATA expansion card supports up to four SATA drives. A suitable QXP card can be installed based on the number of drives you want to connect for storage expansion.