Rack-mounted UPS protection is rarely a one-size-fits-all decision. You have to weigh new versus used equipment, decide whether you need a full battery backup or just monitoring, and check that the voltage and power rating fit your gear. These four 1U products show how different those choices can be, from a battery-less CyberPower unit at $82.50 to a new 1100W Eaton at $289.99.
Quick Take
If you need maximum battery backup in a single rack space, the new Eaton 5P is the most powerful option here at 1550VA/1100W. If you want a new, ready-to-run 120V UPS with AVR, the Tripp Lite SMART500RT1U is a solid 500VA/300W choice. The CyberPower OR500LCDRM1Ua is the lowest-priced listing, but it arrives with no batteries and no rack brackets, so it is best for someone who already has compatible batteries. The MGE unit is different altogether: it is a used critical power monitoring system, not a battery backup, and it suits installations that already have UPS hardware.
Price Comparison
| Product | Listed Price | Price Bar |
| MGE UPS Systems Critical Power Monitoring System | USD 220.00 | |
| Eaton 5P 1U Rackmount 1550VA/1100W UPS | USD 289.99 | |
| CyberPower OR500LCDRM1Ua 1U UPS No Batteries | USD 82.50 | |
| Tripp Lite SMART500RT1U 1U Rackmount UPS | USD 160.00 | |
Decision Matrix
| Product | Best For | Consider If | Keep In Mind |
| MGE Monitoring System | Monitoring critical power | You already have UPS hardware and need visibility | Used unit, no battery backup |
| Eaton 5P | High-capacity rack backup | You need 1550VA/1100W in one rack unit | 208/240V input, highest listed price |
| CyberPower OR500LCDRM1Ua | Budget-focused setups | You can source replacement batteries | Batteries and rack brackets not included |
| Tripp Lite SMART500RT1U | New 120V rack UPS | You want AVR and 6 outlets out of the box | 300W capacity, less than Eaton |
Product Notes
MGE UPS Systems Critical Power Monitoring System (109503
This used listing from Quantum Technology Equipment is a critical power monitoring system rather than a traditional UPS. At $220.00, it is positioned for someone who already has battery backup in place and simply wants to keep an eye on power quality or system status. The unit is made in the United States, and the listing condition is marked used. Choose this if monitoring is your main gap. Its limitation is that it does not provide battery power during an outage, and as a used unit it may not have the same consistency as new hardware. If you need actual backup, this is not the product to rely on alone.
Eaton 5P 1U Rackmount 208V/240V 1550 VA/1100W Uninterruptible Power Supply UPS
At $289.99, this is the highest-priced product in the group, but it also offers the most substantial power: 1550VA and 1100W in a 1U rackmount chassis. It is a new unit, factory sealed per the listing, and it includes six C13 outlets. It supports 208V/240V input, which makes it suitable for data-center-style racks and higher-voltage environments. The Eaton 5P is the right pick if your equipment requires more headroom than a typical 500VA UPS can provide. The trade-off is that it is not designed for standard 120V wall outlets, so it will fit only certain installations. Given the price, you are paying for both capacity and the peace of mind of a new unit.
CyberPower OR500LCDRM1Ua 1U UPS System NO BATTERIES
This CyberPower is the budget entry at $82.50, but there is an important catch: it is sold without batteries. The listing explicitly says batteries are not included, and the rack mounting brackets are also not included. It is a used unit in excellent cosmetic condition, according to the listing, but the power button cover does not fully close. If you already have compatible batteries and can mount it directly on a shelf, this could be a low-cost way to add UPS functionality. However, you will need to source batteries and racks separately, which adds to the total cost and effort. The feature set includes an audible alarm, AVR, LED display, and surge protection, but the missing batteries are the main limitation.
New Tripp Lite SMART500RT1U 1U Rackmountable UPS 500VA 300W 6 Outlet 120V AVR
Priced at $160.00, this Tripp Lite is a new, factory-sealed 1U rackmount UPS with 500VA and 300W of power handling. It has six outlets and maintains a regulated 120V output, so it is a straightforward choice for standard North American equipment. The AVR feature is a nice plus for handling brownouts without switching to battery. With 300W, it is less powerful than the Eaton, but it is also about $130 less and works with common 120V circuits. If you need a new UPS that is ready to run out of the box and fits into a 1U rack space, the Tripp Lite is a balanced pick. Its limitation is the smaller capacity compared to the Eaton, so it is best for lighter loads like network switches or small servers.
Final Recommendation by Use Case
If your priority is maximum backup power in a new unit and your rack runs on 208V/240V, go with the Eaton 5P. If you need a new, ready-to-use 120V rack UPS with six outlets and AVR, the Tripp Lite SMART500RT1U is a strong choice. If you are on a tight budget and can handle sourcing batteries and brackets, the CyberPower OR500LCDRM1Ua offers the lowest entry price. If you already have UPS hardware and only need visibility into your critical power, then the MGE monitoring system is the one to consider. Each product serves a different role, so match the choice to what your rack actually needs.
