[ambandla]

Prem, My SMSP itself is a 450W SMPS and monitor is 15" CRT. This is the reason for trying 600VA.

I have asked for opinions and I came to know that APC India operations are based in Bangalore. I have to get another PC and next time I would certainly go for the APC 650VA UPS with serial port. Yesterday, i had to cut down the budget due to some other expenses. I bought a creative headset for making PC to PC calls (recently took an internet connection) and hence I had to cut down UPS cost.

FYI, you guys suggestions are very very usefull for me. Now, I know that APC hq is in blr, APC 600VA has serial port and that too gives a 2 yr onsite warranty. next month, it's gonna be APC.