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Tripp Lite 3000VA Smart UPS Back Up, Sine Wave, 2250W Line-Interactive, 2U Rackmount, Extended Run Option, LCD, USB, DB9 (SMART3000RM2U) (Personal Computers)

Rack/Tower UPS prevents data loss, downtime and equipment damage due to power outages, voltage fluctuations and transient surges. Requires just 2U of rack space. Large capacity 3000 VA/2250 Watt power capacity offers 13 minutes half load runtime, four minutes full load runtime, expandable with additional external battery pack. Advanced automatic voltage regulation corrects brownouts and overvoltages without using battery power. Includes nine outlets, arranged in three individually controllable load banks, P..
The manufacturer commented on the review belowSee comments
2.0 out of 5 stars
Unit arrived well packed and double-boxed. The boxes were undamaged, but the unit had a dent in the back when unpacked. It is quite loud and emits a buzzing noise in addition to the cooling fan noise. I own several UPS systems by another manufacturer and they are silent. My real complaint is that as soon as I connected to this "new" unit through its web interface, it reported that the batteries were 4.1 years old. The unit is set by default to warn the user if the batteries are over three years old, at which point it recommends replacing them. I bought this as a new unit in March of 2015. The unit also indicated that it's initial power-on self test was January 31 of 2011. So it seems that I have purchased a very old piece of inventory with out of date batteries. I am contacting the manufacturer and will update this review accordingly depending on their response.

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Topic Title Summary Views
   I am using this UPS for professional audio equipment so I am not implementing the automated shutdown features it offers for computer systems. The unit is well constructed and was easy to install in an EIA equipment rack. Using the rear rail supports was a bit of a chore as the device was meant for a server rack which normally has a much greater depth than the rack in which this UPS is mounted. A couple of cuts to the adjustable drawer glide style rear support rails with a metal cutting saw and I had attachment points at both the front AND rear of the unit. This UPS has worked without fail for over a year. We tried a few simulated power failure tests when we first bought it (the UPS feature has not been needed in the field yet) and it switched over without loss of power and ran the equipment for a more than ample period of time to allow shut down without incident.
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The manufacturer commented on the review belowSee comments Unit arrived well packed and double-boxed. The boxes were undamaged, but the unit had a dent in the back when unpacked. It is quite loud and emits a buzzing noise in addition to the cooling fan noise. I own several UPS systems by another manufacturer and they are silent. My real complaint is that as soon as I connected to this "new" unit through its web interface, it reported that the batteries were 4.1 years old. The unit is set by default to warn the user if the batteries are over three years old, at which point it recommends replacing them. I bought this as a new unit in March of 2015. The unit also indicated that it's initial power-on self test was January 31 of 2011. So it seems that I have purchased a very old piece of inventory with out of date batteries. I am contacting the manufacturer and will update this review accordingly depending on their response.
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   This Tripp Lite is the workhorse of my office branches. It has good run time, will take the load of our servers and Power-Over-Ethernet (POE) applications. Always know the load of your devices and do not think that the inexpensive versions will work with connected devices more than once. You will destroy these units if you overload them, so always overspec slightly.Things to know about these are that you need to keep the fan vents clean, so make sure you periodically blow them out to prevent overheating and fan failure. ALSO IMPORTANT TO NOTE that these require a NEMA L5-20P outlet, which has a 90-degree rotated prong (the outlet prongs look like a T on its side), and you need to make sure the AC circuit will support that draw and on a 20A breaker.
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