DESC: Product Features: Interface: PCI; Enclosure: Internal; Downstream Speed: 56 Kbps; Platform: PC; Transmission Line: Cable; Upstream Speed: 48 Kbps; Type: Cable Modem; Analog Modulation Protocol: Bell 103, Bell 212A, ITU V.21, ITU V.22bis, ITU V.23, ITU V.32bis, ITU V.34, ITU V.90, ITU V.92; Max. Fax Transfer Rate: 14.4 Kbps; Fax Standards: ITU V.17, ITU V.27ter, ITU V.29; Data / Fax / Voice Compression: ITU V.42bis, ITU V.44, MNP-5; Error Correction Protocol: ITU V.42 (LAPM), MNP2-4; Voice / Video Transfer Standards: H.324; Depth: 5.2 in.; Height: 0.8 in.; Width: 4.8 in.; Weight: 0.12 lb.; Package Qty.: 1