Buying a rackmount uninterruptible power supply often comes down to one trade-off: how much readiness do you want out of the box? The CyberPower OR500LCDRM1Ua 1U UPS System NO BATTERIES and the CyberPower OR2200LCDRT2U Rackmount Smart UPS 2200VA 120V Battery Backup sit at very different points in the UPS critical power category. One is a low-cost, battery-less foundation; the other is a higher-capacity unit meant to support heavier equipment. This head-to-head lays out which one fits your rack.
Quick verdict
If you have a tight 1U slot and you're prepared to add batteries and mounting brackets, the OR500LCDRM1Ua is the practical pick. If you want 2200VA/1980W output in a 2U chassis for heavier server or network loads, the OR2200LCDRT2U is the stronger choice.
Comparison table
| Consideration | OR500LCDRM1Ua | OR2200LCDRT2U |
| Listed price | USD 82.50 | USD 184.98 |
| Form factor | 1U rackmount | 2U rackmount |
| Condition | Used | Used |
| Communications | Remote monitoring support | USB and serial ports |
| Protection features | Audible alarm, AVR, surge protection | Audible alarm, AVR, surge protection |
Where the OR500LCDRM1Ua wins
At the $82.50 listed price, it is $102.48 less than the OR2200LCDRT2U and uses only 1U of rack space. That makes it a fit for a small used UPS project, especially when you already have a compatible battery and your own rack ears.
Where the OR2200LCDRT2U wins
The 2200VA/1980W rating is its headline advantage. That capacity, along with the 2U chassis, gives it the muscle for a rack full of servers and networking equipment. It also includes USB and serial communication ports and supports an optional remote management card.
CyberPower OR500LCDRM1Ua 1U UPS System NO BATTERIES
This used 1U UPS keeps the rack footprint small while offering audible alarm, AVR, LED display, modular design, remote monitoring support, and surge protection. The catch is in the title: no batteries are included, and rack mounting brackets aren't included either. The power button cover doesn't fully close as pictured, though the unit is in excellent cosmetic condition. Choose it when you want the lowest-priced, space-efficient option here and you can handle the battery and bracket setup yourself. That makes it a realistic choice for a homelab or a single piece of network gear where space is at a premium.
CyberPower OR2200LCDRT2U Rackmount Smart UPS 2200VA 120V Battery Backup
This used rackmount UPS steps up to 2200VA/1980W, and the 2U form factor gives it more room for output. It includes an LCD status display, USB and serial communication ports, AVR, surge protection, and support for an optional remote management card. The NEMA 5-20P input plug means it's designed for a 120V circuit with a matching receptacle, so match it to your rack's available outlet. At the higher end of the price spread, this is the better fit when your equipment list is heavier and you want more power capacity in one unit.
Final choice by use case
Choose the OR500LCDRM1Ua if your priority is a small 1U footprint and a lower investment, and you can add batteries and brackets. Choose the OR2200LCDRT2U if your rack needs 2200VA/1980W of battery backup and a 2U unit with more capacity for servers and networking hardware.
