ZyXEL SLC1248G-22 48-port SHDSL/SHDSL.bis line card. Data transfer rate: 0.004096 Gbit/s, Connectivity technology: Wired. Operating temperature range (T-T): -40 - 70 °C, Storage temperature range (T-T): -40 - 85 °C, Operating relative humidity range: 5 - 95 %. Power consumption (typical): 47 W, Power requirements: -48V DC. Certification: CE UL 60950, CSA 60950 FCC part 15 Class A ITU-T K.20 ETSI 300 019. EN55022 class A EN55024 class A. Dimensions (WxDxH): 390.6 x 240 x 13.8 mm, Weight: 0.5 kg