The USB 2.0 Fax Modem External 56K V.92/V.90 Dual RJ11 Port Dial Up Voice Fax Data is a reliable dial-up modem designed for PCs. With its black color and compact size (80mm length, 20mm height, 35mm width), this modem features two RJ11 ports for versatile connectivity. The V.92 standard ensures high-quality communication, while the ITC brand guarantees performance and durability. This modem is equipped with USB 2.0 connectivity for easy setup and operation, making it a convenient choice for those needing a reliable dial-up modem for their computer networking needs.