The HP USB 3.1 Gen1 x2 Module Flex IO v2 (13L58AA) is an optional internal port module that adds two extra USB Type-A ports (USB 3.2 Gen 1, 5 Gbps) to the Flex IO bay found on selected HP business desktops. Flex IO lets IT departments choose which extra port sits in that slot on the back or front of the PC, and this module fills it with a pair of full-size USB-A ports for peripherals such as keyboards, scanners, drives or headsets. HP lists compatibility with the HP EliteDesk 8 Mini G1a and G1i, EliteDesk 8 SFF G1i, EliteDesk 8 Tower G1i E, ProDesk 4 Mini G1i, ProDesk 4 SFF G1i and ProDesk 4 Tower G1i E desktops. The module measures 41.6 x 39.7 x 16.7 mm and weighs 13 g. Check your PC's Flex IO version before ordering.