Design is unique: Be designed that meticulously by design well-known master, the unique special field exterior new and original designs , the clear , upright generous edge example, accords with the ergonomics request. Handle is extremely nice: Three section of dyadic button route or distance of travel design the keyboard only , adopt the high-quality dyadic contact of film , strike key are silent , button handle is extremely nice. High technology accessory: Core PCB board adopt the advanced COM technology , brings up keyboard superiority being able to ensure the keyboard stability at the same time ,the key cap adds the have germifuga , in keeping with health and environmental protection request. Life time: Structure is sturdy and durable , adopt high-quality silica gel, the button amounts to 10 million time tunk life-span. Interface: PS/2. USB U + P Button route or distance of travel: 4.0 +/-0.3 millimeters Completely compatible IBM.PC and DOS.WINDOWS.UNIX etc. OS. Key number: Two keyfield 105 keys many 5 matchmakers keys.