Uploaded July 2019 | Updated September 2026, 2 weeks ago

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The first "online" or "double conversion" UPS I've ever seen. As it turns out, Tripp-Lite does still have information available on it and it might even still be a current model.

tripplite.com/smartonline-120v-1.5kva-1.35kw-double-conversion-ups-2u-rack-tower-extended-run-snmpwebcard-option-lcd-display-usb-db9-serial~SU1500RTXLCD2U

It does some very interesting things and I feel pretty safe in saying that it's a heck of a score, especially in working condition!