NOTEBOOK KEYBOARD – HP 4540S

Alpha Pro series is on-line double conversion UPS which provides ideal electrical output performance with continuous and uninterruptable high quality power in switching from AC to DC or DC to AC.

Alpha Pro input power factor closes to 1 with power factor correction, and output power factor 0.9 enables UPS to deliver more power and increase the load capacity by 13% compared with traditional products.

Alpha Pro has excellent voltage regulation ability with an ultra-wide input voltage range from 110 – 300 Vac, and auto-sensing 50 Hz / 60 Hz frequency to meet all kinds of grid environment.

In the absence of any AC input, the cold start function allows users to start the UPS with the batteries, and without any damage to them or the circuits.

2 Years Warranty

1 Year Warranty for Battery