Scrolling through critical power options, you spot two listings for the same rackmount UPS: the Libert Vertiv PSI5-1500RT120 1500VA/1350W, both priced at USD 149.99 and both marked as used. You're not choosing between different feature sets or price points; you're choosing between two identical descriptions of the same unit. So which one actually makes sense for your setup?
Quick Verdict
Both listings are functionally identical on paper. They show the same used condition, the same 1500VA / 1350W capacity, the same voltage range, and the same price. If you're looking for a pure sine wave UPS with automatic voltage regulation and an LCD status display, either listing matches the specs. The verdict is a tie.
Comparison Table
| Attribute | Listing 1 | Listing 2 |
|---|---|---|
| Product | Libert Vertiv PSI5-1500RT120 1500VA/1350W Rackmount UPS Battery Backup Qty 1 | Libert Vertiv PSI5-1500RT120 1500VA/1350W Rackmount UPS Battery Backup Qty 1 |
| Price | USD 149.99 | USD 149.99 |
| Price bar | ||
| Condition | Used | Used |
| Stated capacity | 1500VA / 1350W | 1500VA / 1350W |
| Input voltage | 100-125 VAC | 100-125 VAC |
| Output voltage | 100/110/115/120/125 VAC | 100/110/115/120/125 VAC |
Where Each Listing Wins
Because the two listings share the same product title, same price, same condition, and same described capabilities, neither listing has a confirmed advantage over the other. Listing 1 does not appear to be cheaper, faster, or better specified than Listing 2. If you're keeping score, this is a tie on every factor that can be confirmed.
Product Notes
Libert Vertiv PSI5-1500RT120 1500VA/1350W Rackmount UPS Battery Backup Qty 1 (First Offering)

This listing presents the PSI5-1500RT120 as a commercial-grade rackmount/tower UPS pulled from a working environment and individually tested during an equipment refresh. The description says the LCD display is fully functional, the built-in self-test returns "OK," and batteries charge normally. That's a useful level of detail for a used UPS. The main reason to choose this listing is the stated testing process and the 1500VA/1350W capacity. The limitation is the used condition, which means you're relying on the listing description for the battery's internal state.
Libert Vertiv PSI5-1500RT120 1500VA/1350W Rackmount UPS Battery Backup Qty 1 (Second Offering)

The second listing covers the same UPS model and repeats the same testing notes, so the feature set is identical to the first listing. The reason to pick this one would be if you prefer the way this listing is presented, since the product details don't give either listing an edge. It also states the same pure sine wave output, automatic voltage regulation, and LCD status display. The limitation remains the used condition, so the actual battery health depends on the prior working environment.
Final Choice by Use Case
If your priority is a rackmount/tower UPS with 1500VA/1350W capacity, pure sine wave output, AVR, and an LCD display, both listings meet that need at the same price. Choose either one; the lack of any price difference means you won't miss out on a better deal by going with the other. The real decision is simply confirming which listing you choose.