If you're shopping for UPS critical power protection, the first thing to decide is the shape your backup power should take: a tower unit that sits near your desk or a rackmount unit that slides into a server rack. These two APC options land at similar prices, but they answer that question in completely different ways.
Quick verdict
For most desktop and small-network setups, the APC BR1500G is the practical pick. The APC SRT3000RMXLA is aimed at rack environments, but it is a project rather than a plug-and-play unit.
Comparison at a glance
| APC BR1500G Back-UPS Pro | APC SRT3000RMXLA Smart-UPS SRT | |
|---|---|---|
| Price | $191.95 | $203.62 |
| Price bar | ||
| Capacity | 1500VA / 865W | 3000VA / 2700W |
| Form factor | Tower, 120V | Rackmount 2U |
| Condition | New | Used |
| Notable details | 10x NEMA 5-15R outlets, surge protection, AVR | No batteries; rear USB port defective; front bezel clips damaged |
What to think about before you choose
UPS buyers often focus on numbers first, but the way a unit fits into your space matters just as much. Think about your physical space, how much equipment you need to keep online, and how much setup you're willing to take on.
Where each product wins
- APC BR1500G wins if you want a new, self-contained tower UPS for desktop gear.
- APC SRT3000RMXLA wins if you need high-capacity backup and can handle a more involved setup.
If getting protection set up quickly matters more, the BR1500G is the stronger choice. If you have the infrastructure and patience for a more hands-on setup, the SRT3000RMXLA brings a lot more capability.
Product notes
APC BR1500G Back-UPS Pro

The BR1500G is the easier recommendation for anyone protecting a PC, monitor, router, and peripherals. It delivers 1500VA/865W in a compact tower form factor, and the 10 NEMA 5-15R outlets give you room to plug in several devices. Automatic voltage regulation and surge protection help smooth out voltage swings and spikes before they reach your equipment. At $191.95, it is the lower-priced unit here, it arrives new, and the black tower is simple to place near a workstation. The trade-off is capacity: 865W is roughly a third of the SRT3000RMXLA's 2700W, so if you later move to rack-mounted servers or high-draw gear, you will likely outgrow it. For a desktop, small network closet, or home office, this is the more complete, plug-and-protect option.
APC SRT3000RMXLA Smart-UPS SRT

The SRT3000RMXLA is a different animal: a 2U rackmount UPS rated at 3000VA/2700W. If your equipment lives in a rack and you need that kind of headroom, it offers nearly three times the wattage of the BR1500G. But the unit is used, re-boxed, and does not include batteries. It also arrives with a defective rear USB port and damaged front bezel retaining clips, and the condition is graded C. At $203.62, it costs $11.67 more than the BR1500G, but that gap does not include replacement batteries or the effort to fix those defects. This is a sensible option only if you already have a battery plan, work in a rack environment, and are comfortable with used gear.
Final choice by use case
Think of the BR1500G as the safer grab for a workstation and the SRT3000RMXLA as a build-it-yourself project. Match the unit to your environment, not just the price.