The Home Hub 3B is powered by a highly integrated Broadcom BCM6361 System-on-a-chip (So C).
The BCM6361 has a 400 MHz dual MIPS32 core processor as well as an integrated DSL Analog Front End (AFE) and line driver, gigabit Ethernet switch controller and 802.11 Wi-Fi transceiver.
There were two different versions of the BT Home Hub 2.0: v2.0A (2.0 Type A), manufactured by Thomson, and v2.0B (2.0 Type B), manufactured by Gigaset Communications (now Sagem Communications, Sagem having acquired Gigaset's broadband business in July 2009).
Whilst the looks and functionality appear to be identical, the Home Hub 2.0A has been plagued with problems relating to poorly tested firmware upgrades which, amongst other problems, cause the Home Hub 2.0A to restart when uploading files using the wireless connection.
There are two versions of the BT Home Hub 3, the A and the B model.New firmware is pushed out to Home Hubs connected to the Internet automatically by BT.The Home Hub 5 was followed on 20 June 2016 by the Smart Hub, a further development of the Home Hub sometimes referred to as "Home Hub 6".Home Hub 1.0 and 1.5 Wi-Fi (802.11 b/g) Fast Ethernet USB 1.1 Home Hub 2.0 Wi-Fi (802.11 b/g/n) Fast Ethernet USB 2.0 Home Hub 3 Wi-Fi (802.11 b/g/n) Fast Ethernet Gigabit Ethernet USB 2.0 Home Hub 4 Wi-Fi (802.11 a/b/g/n) Fast Ethernet Gigabit Ethernet USB 2.0 Home Hub 5 Wi-Fi (802.11 a/b/g/n/ac) Fast Ethernet Four Gigabit Ethernet ports One USB 2.0 connector Smart Hub Wi-Fi (802.11 a/b/g/n/ac) Fast Ethernet Four Gigabit Ethernet ports One USB 3.0 connector Home Hub 2.0 18.2 cm (7.2 in) (h) 17.5 cm (6.9 in) (w) 8.8 cm (3.5 in) (d) Home Hub 3 11.0 cm (4.3 in) (h) 18.5 cm (7.3 in) (w) 4.0 cm (1.6 in) (d) Home Hub 4 11.6 cm (4.6 in) (h) 23.6 cm (9.3 in) (w) 3.1 cm (1.2 in) (d) The BT Smart Hub (formerly BT Home Hub) is a family of wireless residential gateway router modems distributed by BT for use with their own products and services and those of wholesale resellers (i.e. Since v 5 Home/Smart Hubs support the faster Wi-Fi 802.11ac standard, in addition to the 802.11b/g/n standards.All models of the Home Hub prior to Home Hub 3 support Vo IP Internet telephony via BT's Broadband Talk service, and are compatible with DECT telephone handsets.