... uses gold contact fingers and requires +2.6V.The electrical and mechanical specifications are as follows:FEATURES: Clock Cycle ... UPS,FEDEX,EMS,AIR,SEADelivery Time2 working days About HooTel Factory^ HooTel We are professional Memory Module Manufacturer^ HooTel ... Always welcome you to visit our factory^ HooTel All provide best service to you Advantages1> Factory whole, competitive price2> Qualified ...