Choosing a UPS for critical power usually comes down to two questions: how much equipment do you need to keep alive during an outage, and are you buying a ready-to-run unit or a project? Here we put two very different answers side by side: the APC SMX1500RM2U, a 1500VA/1200W rackmount unit sold used and without batteries, and the CyberPower EC650LCD, a 650VA/390W unit that's certified refurbished and ready to plug in.
Quick verdict: If you need maximum runtime capacity and already have batteries on hand, the APC gives you 1200W of power in a 2U rack form. If you want a single box that provides surge protection and battery backup out of the box, the CyberPower is the simpler, far lower-cost choice. The price spread is substantial: the APC lists at $249.99, while the CyberPower is $55.19-78% below the APC's price.
| Feature | CyberPower EC650LCD-R | APC SMX1500RM2U |
|---|---|---|
| Listed price | USD 55.19 | USD 249.99 |
| Price indicator | ||
| Capacity | 650VA/390W | 1500VA/1200W |
| Outlets | 8 | 8 |
| Condition | Certified Refurbished | Used |
| Batteries | Included | Not included |
| Key features | LCD, ECO outlets | 2U rackmount, LCD, USB |
Where the CyberPower EC650LCD wins: It is the ready-to-run option. The certified refurbished unit includes a sealed lead-acid battery, so you can connect protected equipment immediately. It also has three eco-controlled outlets that cut power to USB-connected peripherals when the computer sleeps, a useful energy-saving touch. At $55.19, it is 78% below the APC's price.
Where the APC SMX1500RM2U wins: It provides far more capacity-1200W versus 390W-which means it can support more or larger equipment, and it does so in a 2U rackmount form factor that slides into a standard server rack. The USB and LCD interfaces make status monitoring straightforward. Just remember that this used unit does not include batteries, so you'll need to add them yourself before it can deliver backup power.
CyberPower EC650LCD-R 650VA/390W 8 Outlets ECO LCD UPS - Certified Refurbished
The CyberPower EC650LCD-R is an all-in-one UPS that ships with a sealed lead-acid battery and eight outlets, so you can connect a computer, monitor, router, and peripherals right away. The LCD gives you input/output voltage, battery capacity, and load capacity at a glance. A standout feature is the three eco-controlled outlets, which power down USB-connected peripherals when the computer goes to sleep-a useful energy-saving detail. At $55.19, it's the more budget-friendly buy. The trade-off: 390W capacity is best for a basic workstation and networking gear, not for high-wattage servers or racks. And because this is a certified refurbished unit, it may show minor signs of prior use, though it has been through a refurbishment process.
APC Smart UPS 1500VA SMX1500RM2U USB LCD 2U Rackmount Battery Backup
The APC SMX1500RM2U is built for heavier lifting. It delivers 1500VA/1200W max output, enough to keep enterprise gear, multiple servers, or networking appliances running during a power event. The 2U rackmount form factor fits neatly into a server rack, and the USB port plus LCD display make monitoring straightforward. The asking price of $249.99 reflects the professional-grade design. However, there are two important caveats: this unit is used, and it does not include batteries. That means you'll need to source and install batteries before it can actually provide backup power. Also, at 1200W, you'll want to make sure your total load stays within that limit. If you already have batteries or are building a rack-based power solution, this could be the right foundation-but factor in the extra cost and effort.
Final choice by use case
If you need a ready-to-run UPS for a home office, small workstation, or modest networking setup, the CyberPower EC650LCD-R is the logical pick. It costs $55.19, includes a battery, and requires almost no setup-just plug in and protect. The eco-controlled outlets and LCD display are nice extras at that price.
If you're outfitting a server rack or data center and need high capacity, the APC SMX1500RM2U offers 1200W and a 2U form factor that fits your infrastructure. But it's a used unit without included batteries, so it's best when you already have compatible batteries or are prepared to invest in them. The $249.99 price is for the UPS head unit only.
