HP 806721-005 Intel Dual Band Wireless-AC 8260 is a WLAN module for adding Wi-Fi and Bluetooth connectivity in supported notebooks. HP identifies this exact spare part in service documentation for the EliteBook Folio 1040 G3 and ZBook Studio G3.
It provides dual-band 802.11ac Wi-Fi with a 2×2 configuration, alongside Bluetooth 4.2. These combined wireless functions support network access and Bluetooth connections through one module. HP’s service procedure shows Main and Aux antenna connections, so the module works with a two-antenna WLAN setup.
The part number is specific: HP lists 806722-005 separately as the non-vPro version. This description concerns 806721-005 and the exact features stated for it in HP documentation.