StarTech.com Flush Mount ExpressCard Adaptors - StarTech.com ECUSB3S254F, The ECUSB3S254F Flush Mount 2-Port USB 3.0 ExpressCard Adaptor from StarTech.com lets you add two USB 3.0 ports to your ExpressCard-enabled laptop.The USB 3.0 card uses a unique design that allows it to sit flush in a standard 54mm laptop ExpressCard slot, creating a seamless add-on that can be left installed even while on the move, without having to worry about impact damage to either the card or the ExpressCard slot.Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0. UASP technology optimises transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. The SuperSpeed USB 3.0 Card supports data transfer rates of up to 5Gbps, and is backward compatible with USB 2.0 (at up to 480Mbps), or USB 1.1/1.0 at up to 1.5/1.2 Mbps respectively - the perfect laptop accessory for users to connect USB devices, both new and old.This product is backed by a 2-year warranty and free lifetime technical support. StarTech.com ECUSB3S254F 2-Port Flushmount USB 3.0 ExpressCard Adapter