16-port high-density SATA 3.0 expansion, perfect for multi-disk NAS, server and large storage upgrade.; Adopts combined ASM1064 and 3JMB575 chip solution, stable operation and strong device compatibility.; Each SATA 3.0 port supports 6Gbps high speed, smooth for HDD, SSD and optical drive data transmission.; PCIe 1X slot design saves high-speed PCIe resources, compatible with most desktop motherboards.; Comes with 16 SATA cables and low profile bracket, suitable for standard and small slim chassis installation.