? Comfortable and quiet - Work comfortably with low-profile keys, a full-size keyboard and a detachable palm rest. And reduce distractions with a keyboard that?s designed for a smooth, quiet typing experience. ? Secure and convenient - Access secured PCs or networks directly from your keyboard. The Dell Smart Card Keyboard KB813 has an integrated smart card reader for easy authentication at your fingertips. ? Reliable - Wired USB connectivity helps provide secure, fast data transfers while eliminating the need for batteries. A spill-resistant keyboard safeguards against the inevitable beverage mishap.