Nortel 8348GTX-PWR 48 port Expansion Module 48 ports. Data transfer rate: 0.1 Gbit/s, Data link protocols: Ethernet, Fast Ethernet, Gigabit Ethernet, Connectivity technology: Wired. Colour of product: Grey. Dimensions (WxDxH): 391 x 470 x 38 mm, Weight: 3.6 kg