A4 KL-23MU X-Slim Multimedia Keyboard. With Headset & USB 2.0 Extension Ports with PS/2 keyboard connector. Headphone and microphone jacks at the left of keyboard. Convenient and practical. No more digging behind the dusty PC under your desk. USB 2.0 extension port built in for plug and play devices. Dimension: 10.3(L) x 7.5(W) x 0.66(H) Inches. Benefit of using slim keyboard is the quietness and key stability.