Welcome to our shop! Features: 1. Plug and Play. It is suitable for WIN 98/2000/ME/XP/Vista/CE5.0/10/8.1/8/7. No need for any external driver. 2. For GRIS fax cats can dial the Internet, send and receive faxes, but do not support voice calls. 3. The 56k data/fax modem uses USB2.0 Type A with a full speed of 56kb/s. 4. Comply with V.92, V.90, and V.42, V.42bis/MNP5 protocols. Meets V.17, V.29, and V.27ter Group 3 fax protocols. 5. Support automatic dialing, tone and pulse dialing, automatic answering, automatic fax sending and receiving. 6. Support caller ID, automatic format/speed sensing, data/fax/voice call, single profile stored on the host, call forward/backward. 7. Up to 56k data download, 48k data upload, and 14.4k fax communication. 8. Compatibility: Standard and expanded AT command set compatibility. Provides fast connection and maintenance function on the modem. Specification: Type: Normal Dial-up Modem Category: External type Interface Type: USB Telephone Line Connection: RJ11 Transmission Rate: 56Kbps Bus-powered USB Device: 5V Transmission Protocol: V.90/K56flex Fax/Protocol: V.17, V.29, Group 3, Class 1 Voice Function: Voicemail, Auto reply Main Function: Dial the Internet, automatically send and receive faxes Operating System: For Windows 98/2000/XP/7/8/10/Vista Compatibility: Compatible with AT and extended AT command sets Package List: 1 x Modem 1 x Disc 1 x User Manual 1 x Data Cable 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.