Customer Reviews for APC - Smart-UPS On-Line, 5.4kVA, Rackmount 3U, 208V, 2x L6-20R+2x L6-30R NEMA outlets, Network Card+SmartSlot, Extended - Black
Customer Rating
5
Reliable and Efficient UPS for Critical Equipment
on December 29, 2025
Posted by: ALICEN19
from LELAND NORTH CAROLINA
The APC Smart-UPS On-Line 5.4kVA has been excellent for keeping our rack-mounted equipment protected. Setup was straightforward with the included rail kit, and the network card makes monitoring simple. Extended runtime is a huge plus, and the variety of outlets (2x L6-20R + 2x L6-30R) covers all our devices. Overall, a solid choice for anyone needing dependable power protection in a professional environment.
Pros: Easy to Overclock, Energy Efficient, Easy to Perform Maintenance, Ease of Management, Good Value, High Quality, Fast, Good Vendor Support, High Confidence Level in 24/7 Uptime
Purchased this for a customer of mine. Not only did the SE engineer recommend the wrong product for my customers environment once, but twice!! With 2 RMA's, this wasted hours of time of multiple people and gave the customer a bad impression.
Cons: Difficult to Use, Lacking Vendor Support
No, I would not recommend this to a friend.
Response from apc.comBy APCbySchneider, Support team, November 24, 2025
Hope all is well! We at APC by Schneider Electric value your feedback and would like to help you with this concern. Please let us know if you still need any additional assistance. We offer email and chat services through our support site and you may also contact us directly at 800-800-4272 option 4 or visit https://www.se.com/us/en/work/support/ and look for the chat icon available from 8AM-8PM EST. Thanks for your time today. Have a great day!
[This review was collected as part of a promotion.] I've been running this APC Smart-UPS On-Line 5.4kVA for over a year now in our small data center, and it's been absolutely fantastic. What I love most is the true online design - during power fluctuations and outages, our servers never experience even the slightest interruption, which is critical for our 24/7 operations. The 3U form factor is perfect for our space-constrained rack, giving us serious power protection without eating up valuable rack real estate like larger units would. The mix of L6-20R and L6-30R outlets perfectly matched our server and storage equipment requirements, and the extended runtime feature has saved us multiple times during longer outages - we easily get 45+ minutes of runtime with our full load. The network management card is incredibly useful for monitoring power conditions remotely and scheduling maintenance, plus the SmartSlot gives us room for future expansion options. Installation was a breeze with the included rail kit, and the unit runs quietly enough that it doesn't add noticeable noise to our server room. For the price point, you really can't beat the combination of true online protection, compact size, and enterprise-grade features - this UPS has been rock solid and gives me complete confidence in our power infrastructure!
[This review was collected as part of a promotion.] A certain VA uses these all the time and due to flexible options and manageability, this unit can exceed ones expectation. Great standby time, Form Factor as well as unit comes with Rails for rack mounting. Thing is a beast, but but also quite small for what it can really do
Pros: Energy Efficient, Easy to Perform Maintenance, Ease of Management, Good Value, High Quality, Fast, High Confidence Level in 24/7 Uptime
[This review was collected as part of a promotion.] This unit is a nice size and fits well within a rack system. The apc - APC Smart-UPS On-Line, 5.4kVA, Rackmount 3U, 208V, 2x L6-20R+2x L6-30R NEMA outlets, Network Card+SmartSlot, Extended runtime, W/ rail kit [TAA] is priced reasonably and serves as a reliable addition to any IT application. Unit is easy to mount. Paired with the smart slot network card as well as the wireless communication adapter, there is a great sense of peace of mind provided by this unit. For our IT professionals, there are many benefits to be gained with the use of this unit. The display is well visible and easy to navigate through the options and settings. The values as well as run time are easy to keep track of. There are many applications that this unit would be helpful with. Battery replacements are simple to do. Maintenance is easy as well. The environmentally conscious manufacturing makes this a great buy. Worth it on many levels.
As a reseller, I take pride in recommending and selling the most quality equipment to my customers. This unit is just that. The price-point is fantastic. Customers have had rave-reviews to me about the units performance and durability. You can never go wrong with anything from APC.
Pros: Ease of Management, Good Value, High Quality