HP 939355-001 Integrated Single-Head MSR is a magnetic stripe reader listed for the HP ElitePOS G1. Its single-head reading unit is intended for use as part of that point-of-sale system, providing a dedicated way to read magnetic stripe cards at the checkout.
The listing identifies the component as an HP Inc part and associates it with ElitePOS G1. This description refers to the specific 939355-001 part number and its integrated, single-head MSR designation.