Detailed Product Description Multimedia keyboardSpecification: 1,General high keycap structure design2,Key pressure:55g,comfortable hard feeling3,Effectively reducing typing stress,release the arm muscle strain4,Noiseless design for undisturbed working environment5,Keys life: over 1,000,000 times6,PS/2,USB and combo available7,Compatible with Windows 98/NT/ME/2000/XP/Vista