If you are looking for a practical modem， you cannot miss this 56K Black USB Voice Fax Data External V.90 V.92 Modem which must satisfy your demand! Made of high quality material and with professional design， this modem is up to standard， reliable and stable in use. It is also high quality and durable to use. USB 56K V.90 external dial up PCI voice fax data modem. Get it home and you will also gain the best after-sales services                                    Features            High quality and durable in use56K data / fax modem with USB interfaceStable and reliable performanceComplies with V.17， V.29 and V.27ter group 3 fax protocolComplies with V.90， V.42 / V.42bis and MNP5 protocolsConexant chipsetSupports auto dial， tone， pulse dialing， automatic answer and retrainSupports caller ID， distinctive ring detect and automatic format / speed sensingSupports data， fax / voice call discrimination， single configuration profile stored in host and call forward / fall - backUp to 56Kbps data download， 48Kbps data upload and 14.4Kbps fax communication                                                            Specifications            Transmission Line    RJ11 / RJ12    <br>Compatibility    AT and extended AT command set    <br>Color    Black    <br>Supports    Microsoft Windows 98 SE， 2000， Me， XP， Win 7 - 32bit and Vista    <br>Dimensions    (7.5 x 2.8 x 2.2) cm / (2.95 x 1.10 x 0.86) " (L x W x H)    <br>Weight    47 g / 1.66 oz    <br>                                                            Package Includes            1 x 56K USB Voice Fax Data External V.90 V.92 Modem Side Lights Black1 x Phone Line