The Poly U10P Short End Cable (784Q5AA) is a corded adapter cable for wired headset connectivity. It provides a cable connection for compatible Poly EncorePro headsets.
HP lists it for the Poly EncorePro 515 Monoaural USB-A Headset, the Poly EncorePro 515 Microsoft Teams Certified Monoaural USB-A Headset, the Poly EncorePro 310 Monaural USB-A Headset TAA, and the Poly EncorePro 725 USB-A Stereo Headset TAA. Its listed weight is 0.058 kg, making it a light cable accessory for a headset setup.