4.0 out of 5 stars Buzzing Noise

2025-12-25    -Parent of 4

This review will be updated pending the current case open with CyberPower.I received the expected 1500VA product. It was easy to hook up and came with the equipment that was expected to mount it. The runtime for my equipment is as expected on battery. I was able to successfully test the product by pulling the power cable and never losing power on my equipment.The reason for three stars currently is due to a buzzing noise from the transformer. It seemed louder than a transformer should be. This only occurs when it is on battery. It is completely silent when it is being supplied power. I contacted CyberPower for this issue.They are responding accordingly and requested a video. After sending the video, they felt that it would be best to RMA the product. I am pending further instruction for this transaction to occur. I will be able to update the review once I complete the case with CyberPower and can evaluate the replacement.*Update*Cyberpower support work with me regarding this issue. I sent a video of the noise to the technician and they agreed that the unit should be replaced. They sent another 1500 VA unit to me. It was the same model appended with an a at the end of the model number. The case was slightly different but everything appears to functionally be the same. There is still a bit of a buzzing noise from the transformer when on battery, however, much more quiet than the one they previously provided.Updated the rating to four stars.

Muy buena respuesta a fallos de energía y bajones

2026-03-05    -Jorge hernández

Excelente producto, lo uso para mí computadora personal, con otros no break no soportaba los bajones de luz a pesar de que la carga del mismo no llegaba a más del 80% y este funciona perfectamente.

Funciona bien

2026-01-21    -JQ

Hace algo de ruido pero me da unos 30 mins para mi router y mi grabadora de camaras de seguridad. Las baterias son fáciles de conseguir y a precios razonables

Funciona bien

2025-12-30    -JQ

Hace algo de ruido pero me da unos 30 mins para mi router y mi grabadora de camaras de seguridad. Las baterias son fáciles de conseguir y a precios razonables

4.0 out of 5 stars Buzzing Noise

2026-01-22    -Parent of 4

This review will be updated pending the current case open with CyberPower.I received the expected 1500VA product. It was easy to hook up and came with the equipment that was expected to mount it. The runtime for my equipment is as expected on battery. I was able to successfully test the product by pulling the power cable and never losing power on my equipment.The reason for three stars currently is due to a buzzing noise from the transformer. It seemed louder than a transformer should be. This only occurs when it is on battery. It is completely silent when it is being supplied power. I contacted CyberPower for this issue.They are responding accordingly and requested a video. After sending the video, they felt that it would be best to RMA the product. I am pending further instruction for this transaction to occur. I will be able to update the review once I complete the case with CyberPower and can evaluate the replacement.*Update*Cyberpower support work with me regarding this issue. I sent a video of the noise to the technician and they agreed that the unit should be replaced. They sent another 1500 VA unit to me. It was the same model appended with an a at the end of the model number. The case was slightly different but everything appears to functionally be the same. There is still a bit of a buzzing noise from the transformer when on battery, however, much more quiet than the one they previously provided.Updated the rating to four stars.

5.0 out of 5 stars Excellent value for a homelab or small setup

2026-01-30    -Marshall Folsom

Amazing choice from a homelab perspective. I have TrueNas running on an old Z270 setup that's plugged into this UPS. Cyberpower has native .deb packages that get linux systems talking over the included USB cable. I've got this UPS gracefully shutting down my NAS during power outages and doing weekly self tests. Couldn't be happier. Also had a weird burning smell on the first outage event, seems to have been a 1-off event though, as it's worked great for about a year now.root@nas1-z270[~]# pwrstat -statusThe UPS information shows as following:Properties:Model Name................... OR500LCDRM1UaFirmware Number.............. BF01806C1G11Rating Voltage............... 120 VRating Power................. 300 Watt(500 VA)Current UPS status:State........................ NormalPower Supply by.............. Utility PowerUtility Voltage.............. 118 VOutput Voltage............... 118 VBattery Capacity............. 100 %Remaining Runtime............ 27 min.Load......................... 81 Watt(27 %)Line Interaction............. NoneTest Result.................. Passed at 2024/04/22 09:25:16Last Power Event............. Blackout at 2024/04/16 11:12:40root@nas1-z270[~]#

Great Protection in Slim Form-Factor

2026-01-07    -Would you? Oh Wait!

The CyberPower OR500LCDRM1U Smart App LCD UPS has proven to be an absolute lifesaver for my electronic devices. The sleek 1U design fits seamlessly into my rack setup, providing both convenience and robust protection.The LCD display is a standout feature, offering real-time insights into power conditions, battery status, and load levels. This smart functionality enhances my ability to monitor and manage power usage effectively. The unit's automatic voltage regulation (AVR) ensures a stable power supply, safeguarding my sensitive electronics from unexpected fluctuations.Installation was a breeze, and the unit's compatibility with the PowerPanel Business Edition software makes it easy to customize settings and receive timely notifications. The compact form factor doesn't compromise on performance, and the ample runtime provides me with peace of mind during power outages.The CyberPower OR500LCDRM1U strikes the perfect balance between reliability and intelligence. It's a must-have for anyone seeking a compact and feature-rich UPS for their rack-mounted devices. Five stars well-deserved!

Super quiet, excellent UPS

2026-01-30    -Zealot

Compared to many other rackmount UPSs that I have, this one is my favorite. Super quiet and still has great runtime. I can actually use this one in my house and not be worried about noise.

5.0 out of 5 stars Great UPS for small racks!!

2026-02-01    -Jason

Works great for small situations. There are a couple of locations at work with just one or two switches that need to stay on. I'm using this more for power spikes that will only bring power down for a couple seconds. They arrive fully ready to go (it says in the manual to let them charge for 8 hours before you put a load on it. You might want to pick up an "RCCard100" This expansion goes into the back and connects to your network. You can also connect it with the built in LAN connectors, then follow the instructions on how to find it on your network. You can monitor them from an app on your phone, they will even let you know when power goes off for that UPS. The display and power light are nice and bright. The film on the outside did have a smell, but it went away after I threw out the box and trash.

Great Protection in Slim Form-Factor

2026-01-14    -Would you? Oh Wait!

The CyberPower OR500LCDRM1U Smart App LCD UPS has proven to be an absolute lifesaver for my electronic devices. The sleek 1U design fits seamlessly into my rack setup, providing both convenience and robust protection.The LCD display is a standout feature, offering real-time insights into power conditions, battery status, and load levels. This smart functionality enhances my ability to monitor and manage power usage effectively. The unit's automatic voltage regulation (AVR) ensures a stable power supply, safeguarding my sensitive electronics from unexpected fluctuations.Installation was a breeze, and the unit's compatibility with the PowerPanel Business Edition software makes it easy to customize settings and receive timely notifications. The compact form factor doesn't compromise on performance, and the ample runtime provides me with peace of mind during power outages.The CyberPower OR500LCDRM1U strikes the perfect balance between reliability and intelligence. It's a must-have for anyone seeking a compact and feature-rich UPS for their rack-mounted devices. Five stars well-deserved!