Dell SK-3205 104 Key Black Wired USB Keyboard with Smart Card Reader KW240 0KW240 CN-0KW240. The Dell Smart Card USB Keyboard can be used on a PC system with a USB port. This integrated keyboard/smart card interface is a perfect solution for PC-based smart card applications. The keyboard can be used for secure web applications, identification systems, banking transactions and secure logon. Its smart card interface can be used with all microprocessor smart cards. This USB Keyboard with smart card reader is designed ergonomically to maximize your comfort and productivity.