CyberPower OL1KRM
An entry online UPS for a rack of servers or storage that cannot tolerate any transfer time.
Amazon $902.50$902.50
The CyberPower OL1KRM is the better UPS battery backup overall, rated 3.1 to 3.0. The CyberPower OL1KRM leads on topology and waveform. The CyberPower OR1500LCDRM1U wins on value, features and warranty. The CyberPower OR1500LCDRM1U costs $287.55 less ($614.95 vs $902.50).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
CyberPower OR1500LCDRM1U
A 1U rackmount UPS for network gear and servers with conventional power supplies.
Amazon $614.95$614.95
Which should you buy?
- Choose the CyberPower OL1KRM for topology and waveform (online double-conversion, sine wave vs line-interactive, simulated sine wave).
- Choose the CyberPower OR1500LCDRM1U for value ($68.33 per 100 W ($614.95, 900 W) vs $100.28 per 100 W ($902.50, 900 W)), features (automatic voltage regulation, LCD, software or network management vs LCD, software or network management) and warranty (3-year warranty, $300,000 equipment guarantee vs 3-year warranty, no equipment guarantee published).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every rackmount and online UPS battery backup; a clear win is highlighted. How we rank explains each one.
| Factor weight | CyberPower OL1KRM | CyberPower OR1500LCDRM1U |
|---|---|---|
| Overall rating | 3.1/5 | 3.0/5 |
| Value 25% | 9 $100.28 per 100 W ($902.50, 900 W) | 27 $68.33 per 100 W ($614.95, 900 W) |
| Output 15% | 42 900 W rated output | 42 900 W rated output |
| Topology and waveform 20% | 100 online double-conversion, sine wave | 30 line-interactive, simulated sine wave |
| Runtime 10% | 50 runtime at 100 W not published (neutral score used) | 50 runtime at 100 W not published (neutral score used) |
| Features 15% | 40 LCD, software or network management | 65 automatic voltage regulation, LCD, software or network management |
| Warranty 15% | 35 3-year warranty, no equipment guarantee published | 58 3-year warranty, $300,000 equipment guarantee |
Specifications
| CyberPower OL1KRM | CyberPower OR1500LCDRM1U | |
|---|---|---|
| Power | ||
| Rated apparent power | 1,000 VA | 1,500 VA |
| Rated real power | 900 W | 900 W |
| Topology | Online (double-conversion) | Line-interactive |
| Battery waveform | Sine wave | Simulated sine |
| Automatic voltage regulation | - | Yes |
| Outlets and features | ||
| Outlets | 8 | 6 (4 on battery) |
| Format | Rackmount | Rackmount |
| Display | LCD | LCD |
| USB charging ports | - | No |
| Data port, software or network option | Yes | Yes |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Connected-equipment guarantee | - | $300,000 |