For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.
HP MRLBB-1301 (5188-9354)
FCC approval date: 30 October 2013
Country of manuf.: China
Form factor tags: Mini Card
WI1 chip1: Broadcom BCM43460
2.4/5GHz Front End Module;Skyworks;SE5516;SE5516, 5184353.1, 1245 MX;3;
Probable Linux driver
(see also passys)
WLAN 802.11ac Radio Module
This is presumably an 11ac module for one of HP's enterprise APs.
"P/N: 142000000883A REV: 0B" and "EPC05" appears to be silkscreened on the board in the FCC photos.
Broadcom BCM43460 802.11ac 3T3R MAC/PHY/Radio