1.Advanced Waterproof Technology.
2.PS/2, USB available.
3.Laser printed keys ,never fade 
4.High performance in Internet and high quality 
5.Compatible with Windows NT/98/ME/2000/XP/Vista 
Inner Packing :1pcs/box  
Outer Packing:20pcs/ctn
MEAS : 480x 380 x 375mm
N.W.: 13kg
G.W.: 14kg