This is the 8-contact, 1-port member of the 55917 series, designed for board-edge I/O where space is tight and you need both data and DC power through one cutout. The right-angle through-hole orientation means the USB plug inserts parallel to the PCB, typical for rear-panel or side-mounted ports on industrial computers, point-of-sale terminals, or test equipment.
The 3A per-contact current rating and 5V voltage rating are standard for USB 2.0 power delivery — the power contacts in the combo section share the same rating, so the connector can supply up to 3A total on the power rail. The 8-contact count breaks down as the standard 4-pin USB-A plus 4 additional power/ground contacts — confirm your cable assembly mates with the full 8-position footprint before committing to the BOM.