Review on StarTech.com SuperSpeed USB 3.0 Card Adapter - Dual Port Flush Mount ExpressCard 54mm Controller with UASP for Laptop (ECUSB3S254F) by Jon Robertson

Worked great, just installed on my Linux Mint laptop and recognized it straight away, didn't even need to reboot. This is why Startech is better than others, it just works. I ran some performance tests right away, I know it's not the "real world" but there are some pointers to judge things. I'm very impressed with the Startech card as it's an ExpressCard/54, I knew it would be faster than USB 2.0 but I honestly didn't think it would work as well as it used to. HP Probook 6550b with Intel i5 m460 @ 2.53 GHz, 8 GB RAM and Linux Mint 17.2 CinnamonUSB 2.0 with 1 TB Hitachi Drive in Vantec NexStar TX USB 3.0 SATA III chassis Average read speed: 33.6 MB/s (max. 39, 1 MB/s) Average write speed: 22.8 MB/s (max. 27.1 MB/s) USB 3.0 with 1 TB Hitachi hard drive in Vantec NexStar TX USB 3.0 SATA III enclosure Average read speed: 84.9 MB/ s (96.1 MB/s max.) Average write speed: 56.7 MB/s (max. 63.4 MB/s) USB 2.0 with 64 GB MicroCenter flash drive USB 3.0 Average read speed: 34.2 MB/s (36.0 MB/s max) Average write speed: 11.2 MB/s (17.2 MB/s max) USB 3.0 with MicroCenter 64 GB USB 3.0 Flash Drive Average read speed: 86.1 MB/s (90.9 MB/s max) Average write speed: 11.3 MB/s (19.0 MB/s max) And just for reference: Internal 240 GB OCZ ARC SSD Average read speed: 266.3 MB/s (max. 279.5 MB/s) Average write speed: 228.4 MB/s (max. 240.3MB/s)