SATA II EXPRESS CARD 34 2X ESATA FOR NB Affordably upgrade your PC or Mac to fast SATA II connectivity, which boasts an extremely rapid interface transfer rate of up to 3Gbits/s. This card provides two ports so you can connect two external SATA devices simultaneously. It supports eSATA hardware hot plugging / unplugging and external hard drives with the Native Command Queuing (NCQ) feature. This card is also compatible with port multiplier devices and with non-LaCie eSATA devices. In addition, it's backward compliant with SATA I (at SATA I performance).