CyberPower PR500LCDRT1U Smart App Sinewave UPS System, 500VA/400W, 7 Outlets, AVR, 1U Rack/Tower

Amazing quality product, it even comes with a quality control sheet and all the things they check in factory. I bought consumer grade CyberPower UPS before, and it was dead on arrival, but not this one.For FreeNAS users down there - yes it works via USB, just select 'Cyber Power Systems ups 3 PR6000LCDRTXL5U USB (usbhid-ups)' driver, and set 'Shutdown mode' to 'UPS reaches low battery', that way when battery reaches 33% charge it initiates shutdown procedure. If you're struggling to find 'Port' in Shell enter 'dmesg | grep -i usb' you should be able to see where it's connected. Works like a charm.

This unit does what it does VERY well.I am a performing keyboard player and this UPS cleans and backs up power for the most sensitive gear in my live rig. I was previously using the Cyberpower OR500LCDRM1U for my rig, however I occasionally would be in a venue with really nasty juice where the simulated sine wave pattern on that unit would fail to clean power up enough for stability in my rig. After several recommendations from other players that I needed a true sine UPS, I purchased the PR500LCDRT1U. It was twice the money, but so far I have yet to have an issue in any of the venues that I had problems with the OR500LCDRM1U.There are other reviews that I've seen that talk about excessive noise with this unit but honestly, it seems pretty darn quiet to me. I was expecting there to be more noise than my OR500LCDRM1U but it just wasn't the case.I have yet to have needed to seek tech support for this unit however I have been using CyberPower UPSs at my house for 20 years. I have only needed to seek support for two out of the roughly 15 CyberPower UPSs I've owned over the years. In both cases, tech support at CyberPower was knowledgeable, friendly and resolved my issue to my satisfaction. I'm an IT professional, so I'm not an easy customer in this aspect. I expect alot. CyberPower has always met or exceeded my expecations.

the last 3 I bought had at least one battery bad, bc right out of the box it beeps, and manual says may be the batteries. weeks later it still beeps. They are very expensive and to not have a contact seller option is BS. When I select contact seller it takes me to the bot and I can not get past that piece of junk service. This are needed for my work, I need to look elsewhere for them. Just some FYI.

I had to RMA this product 2 times. Both units I had reported under voltage output and would randomly (usually every 4 to 6 hours) go into battery mode as if disconnected from the electricity. If disconnected from the electricity, for any amount of time [or from the random battery mode], the battery would discharge down to around 92%. Not only this, both had an audible transformer hum/noise while the battery was recharging after each incident.I have several CyberPower UPS units (3x rack units and 3x PC units). I have never had a problem with any CP products before this PR series unit. Just to be clear, I am not condemning or bad mouthing CP for this particular unit, but after my experience with the PR series, I think they are not reliable and possible inherently defective.I sent a photo (see image) to CP tech support showing the disparity of the output voltage of the PR unit vs 2x OR units on the same electrical circuit. Both (the original purchase and the RMA) of the PR units, I allowed to run for a couple of days under no load whatsoever, each of which exhibited the same random disconnect oddity from the wall outlet.I ended up RMA'ing the second unit for an exchange of the OR series 400w/700va unit. (as mentioned, I have 3x rack units, all of which or OR series) and they work perfectly.Be warned, to those looking for a 1U UPS, go with the OR series CyberPower UPS systems. They aren't technically pure sinewave (simulated sinewave) but they work flawlessly. I need units to be reliable, not have problems right out of the box.CyberPower tech support worked with me on the RMAs and, ultimately, agreed to the OR series exchange/swap. They do have a protocol for RMAs that takes some time to process. SO, if you have a warranty and/or RMA issue, be patient, it should get resolved in time.

I installed this in my network rack to power a switch, modem, and a router.Pros:- Pure sinewave output. I just don't want to fool around with determining if my equipment (current and future upgrades) can tolerate modified sinewave output.- Fits my Startech 4U 19-Inch Steel Vertical Rack and Wall Mountable Server Rack quite nicely. Despite its heavy weight, the rack holds it with no flex.- Excellent CyberPower customer service. The first one arrived with a battery malfunction. CyberPower replaced it immediately and paid shipping both ways.- Because I have VOIP telephone, I use this to maintain VOIP modem capability during power outages rather than paying Charter an extra fee for backup batteries in the modem.- Runs silently while on AC power. The cooling fan only runs when necessary (usually after it has been on battery for awhile).- No need for a separate power distribution bar.- Comes with rackmount brackets. Does NOT include the rackmount bolts and nuts to attach it to the rack.Cons:- While on battery, there's a bit of a high pitched electrical whine. It's tolerable, but definitely not as quiet as other CyberPower UPS units (like my CyberPower CP1500PFCLCD PFC UPS or my CyberPower CP1350PFCLCD PFC UPS), which have no electrical noise while on AC or battery. It'd probably be o.k. if it were mounted a few feet away from a workstation or under a desk.- The cost of the ethernet remote management circuit board is just silly--over $120.