DESC: Product Features: Interface: PCI Express, RJ-11; Downstream Speed: 56 Kbps; Platform: PC; Transmission Line: Analog, Cable; Upstream Speed: 48 Kbps; Type: Analog/Cable Modem; Analog Modulation Protocol: ITU V.21, ITU V.22bis, ITU V.32bis, ITU V.34, ITU V.90, ITU V.92; Max. Fax Transfer Rate: 33.6 Kbps Or More; Fax Standards: ITU Group 3 Fax, ITU T.30, ITU V.17, ITU V.27ter, ITU-T V.90, ITU-T V.92; Data / Fax / Voice Compression: ITU V.42bis, ITU V.44, MH, MMR, MNP-5, MR; Error Correction Protocol: ITU V.42 (LAPM), MNP-3, MNP-4; Depth: 13.9 in.; Height: 5 in.; Weight: 0.53 lb.; Package Qty.: 1