Grid & Cell

New, Open-Box, or Used? Rackmount UPS Comparison from $150 to $420

Compare four rackmount UPS units from $149.99 to $420: open-box new 1500VA, new 2000VA with warranty, tested used 1500VA, and used 3000VA without batteries.

Last updated Aug 17, 2026

Quick Take

Choosing a rackmount UPS for critical power usually means weighing condition against capacity against listed price. These four units span a wide range: from a 1500VA used unit at $149.99 to a 1500VA open-box new unit at $420.00, with a new 2000VA unit and a used 3000VA unit in between. The big decision is whether you want a ready-to-run unit, a new unit with a warranty, or a high-capacity unit that needs batteries.

Listed Price Comparison

ProductListed PriceRelative PriceConditionCapacityKey Detail
W Box Technologies OE-RCKMT1500USD 420.00New - Open box1500VA / 1050W8 outlets, LCD, AVR
CyberPower CP2000PFCRM2UUSD 379.00New2000VA / 1200W3-year warranty
APC SRT3000RMXLAUSD 214.34Used3000VA / 2700WNo batteries, cosmetic wear
Libert Vertiv PSI5-1500RT120USD 149.99Used1500VA / 1350WTested, pure sine wave, AVR

Decision Matrix

Your PriorityRecommended PickWhy
Highest wattageAPC SRT3000RMXLANo batteries included
Active PFC compatibilityCyberPower CP2000PFCRM2UPFC sine wave output
Open-box purchaseW Box Technologies OE-RCKMT1500Unused, packaging opened
Lowest listed priceLibert Vertiv PSI5-1500RT120Tested used unit

Product Notes

#### W Box Technologies OE-RCKMT1500 1500VA/1050W Rackmount UPS - Open Box New

W Box Technologies OE-RCKMT1500 1500VA/1050W Rackmount UPS - Open Box New

The W Box Technologies OE-RCKMT1500 sits at the top of the listed price range, but it is the only unit listed as New - Open box. The packaging was opened to verify the contents, while the unit itself is described as unused and includes the original accessories such as rackmount ears. It provides 1500VA / 1050W in a 2U rackmount or tower convertible format, with line-interactive AVR, eight outlets with battery backup and surge protection, an LCD display, and pure sine wave output. The main limitation is the price: at the high end of this group, it is the most expensive option listed.

#### CyberPower CP2000PFCRM2U Rackmount UPS 2000VA 8-Outlets AVR Surge Protection

CyberPower CP2000PFCRM2U Rackmount UPS 2000VA 8-Outlets AVR Surge Protection

The CyberPower CP2000PFCRM2U includes a 3-year manufacturer warranty and uses PFC sine wave output, making it a match for equipment with active PFC power supplies, plus automatic voltage regulation and surge protection. The color LCD provides real-time status, there is an audible alarm, and an optional Remote Network Management Card or Cloud Monitoring Card can add remote monitoring. Its 2000VA / 1200W rating sits between the 1500VA models and the 3000VA APC. The limitation: at $379, the listed price is not far from the open-box unit at $420, and you do not get the sheer wattage of the APC.

#### Libert Vertiv PSI5-1500RT120 1500VA/1350W Rackmount UPS Battery Backup Qty 1

Libert Vertiv PSI5-1500RT120 1500VA/1350W Rackmount UPS Battery Backup Qty 1

The Libert Vertiv PSI5-1500RT120 is the lowest listed price in this group. It is a used commercial-grade unit pulled from a working environment, and it powers on, shows a fully functional LCD, passes the built-in self-test, charges batteries normally, and displays no replace-battery messages. It delivers 1500VA / 1350W in a rackmount/tower format with pure sine wave output and automatic voltage regulation. The limitation is the used condition: a tested used unit is not the same as a factory-new unit, and it was removed from service during an equipment refresh.

#### APC SRT3000RMXLA Smart-UPS SRT 3000VA Rackmount UPS (No Batteries)

APC SRT3000RMXLA Smart-UPS SRT 3000VA Rackmount UPS (No Batteries

The APC SRT3000RMXLA offers the highest capacity in this group at 3000VA / 2700W, but it arrives without batteries. It is a pre-owned, re-boxed unit removed from a working environment, and it shows cosmetic wear, damaged front bezel retaining clips, and a defective rear USB port. For $214.34, you get a 2U rackmount Smart-UPS with the most wattage here. The limitation is that you must supply compatible batteries, and the defective rear USB port removes rear USB connectivity.

Final Recommendation by Use Case

  • If you need the most wattage and can supply batteries: choose the APC SRT3000RMXLA, but expect a used unit with no batteries and some cosmetic wear.
  • If you want a new unit: choose the CyberPower CP2000PFCRM2U for a fully New listing with a 3-year manufacturer warranty.
  • If you prefer an unused unit with original accessories: choose the W Box Technologies OE-RCKMT1500.
  • If you want the lowest listed price: choose the Libert Vertiv PSI5-1500RT120 for a tested used rackmount/tower UPS.
Products in this article
W Box Technologies OE-RCKMT1500 1500VA/1050W Rackmount UPSUSD 420.00View on eBayCyberPower CP2000PFCRM2U Rackmount UPS 2000VA 8-Outlets AVR Surge ProtectionUSD 379.00View on eBayLibert Vertiv PSI5-1500RT120 1500VA/1350W Rackmount UPS Battery Backup Qty 1USD 149.99View on eBayAPC SRT3000RMXLA Smart-UPS SRT 3000VA Rackmount UPS (No BatteriesUSD 214.34View on eBay
W Box Technologies OE-RCKMT1500 1500VA/1050W Rackmount UPSUSD 420.00View on eBayCyberPower CP2000PFCRM2U Rackmount UPS 2000VA 8-Outlets AVR Surge ProtectionUSD 379.00View on eBayLibert Vertiv PSI5-1500RT120 1500VA/1350W Rackmount UPS Battery Backup Qty 1USD 149.99View on eBayAPC SRT3000RMXLA Smart-UPS SRT 3000VA Rackmount UPS (No BatteriesUSD 214.34View on eBay

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