Broadcom BCM20702A0 is a network device. This product is available from Broadcom.
Broadcom Crystal HD Improvements Under Linux: For those that use the Broadcom Crystal HD adapters for video acceleration under Linux, their open-source driver has received a number of improvements just recently...
Broadcom Announces Open-Source 802.11n Driver!: Broadcom wireless network adapters have long been notorious with Linux users since this hardware vendor has not provided any open-source Linux drivers or specifications for their chipsets, even though Broadcom ASICs are dominantly used within today's wireless adapters.