A4Tech KB-8A has Traditional Keycaps, Character Laser Engraving, Splash Proof: Yes, Adjustable Keyboard Legs: Yes, Rating: 5 V / 30 mA, Demension: 459 × 165 × 25 mm, Weight: 640 g, Cable Length: 150 cm, Hardware Connectivity: USB / PS2, Illuminated: No, System Requirements:Windows XP / Vista / 7 / 8 / 8.1 / 10