Zoom 3025 V.92 56K-PCI Modem. Modem speed: 56 Kbit/s. Maximum fax transfer rate: 14.4 Kbps. Minimum processor: Pentium 133 MHz, Minimum RAM: 16 MB. Dimensions (WxDxH): 122 x 135 x 12.7 mm. Certification: FCC Part 15B/68 UL, C-UL RoHS CE