Please ensure your 15/17 Macbook Pro has an Expresscard 34 slot prior to inquiring.

Currently, I have this card installed and working within a late 2011 17 Macbook Pro on macOS 10.13 (High Sierra) and am seeing real-world USB 3.0 speeds of around 1Gbps = 125MB/s. The Expresscard 34 slot only has enough power to run a single USB 3.0 external drive by itself. You will need a powered USB 3.0 external drive or powered USB 3.0 hub to run multiple USB 3.0 external drives at the same time. The Expresscard is a snug fit, but works and is Super Fast. Don't live another day without it!

For an additional $20, I will install the Expresscard and Drivers for you on your macOS 10.7~.

Description: Stable and reliable NEC UPD720202 chipset Suitable for 15/17 Macbook Pro that contains an Expresscard 34 Slot It supports Expresscard 34mm slot. It does not support Pcmcia cardbus slot. 2 USB 3.0 specification ports Theoretical Transfer Rate 5Gbps = 625MB/s. Real-World Transfer Rate 1Gbps = 125MB/s Support USB series specifications (Compatible USB 1.1 Full-Speed / 2.0 High-Speed) Support Super-Speed 5Gbps, High-Speed 480Mbps, full-speed 12Mbps and low-speed 1.5Mbps data transfer rate. Support Windows XP / vista / Win 7 / 8/ Server 2008 and macOS 10.7~

Specifications: Item size: 75345mm Quantity:1Pc

Package includes:

1 x Express Card ExpressCard 34mm/54mm Hidden Adapter 1 x Windows Driver CD 1 x Link to macOS Driver