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Black tower UPS with six outlets and a 16GB USB drive

APC

APC Back-UPS Pro BK500BLK Tower UPS 500VA 300W with 16GB USB 3.0 Drive

SKU CH-4F58-4XDPW

Tower UPS delivers 500 VA and 300 W battery backup with six NEMA 5-15R outlets and a 16 GB USB 3.0 drive

  • Input line frequency50/60 Hz
  • Power inputNEMA 5-15P
  • Volt-ampere rating0–500 VA
  • Power rating0–500 W
  • Voltage output120 V
  • AC output frequency50/60 Hz +/- 3 Hz
  • Protects critical hardware during outages with 500 VA / 300 W battery backup
  • Six NEMA 5-15R outlets provide both battery backup and surge protection
  • Automatic self-test and audible alarms ensure ongoing reliability
  • Extendable 3.4 minute runtime at full load keeps systems running
  • Includes 16 GB USB 3.0 DataTraveler for portable file storage

Tower UPS with 500VA capacity

The APC Back-UPS Pro BK500BLK is a tower-form uninterruptible power supply rated at 500VA and 300W output. It provides battery backup and surge protection for connected equipment through six NEMA 5-15R outlets. A 16GB USB 3.0 DataTraveler drive is included for portable file storage. The unit operates on 120V input with a NEMA 5-15P plug.

Suitable for basic desktop and networking gear

This UPS suits users needing short runtime for a computer, modem or router during brief outages. It delivers 3.4 minutes of backup at full 300W load and features automatic self-test plus audible alarms. Buyers requiring extended runtime for servers or high-power workstations should consider higher-capacity units. The USB port enables management software connectivity.

300W output capacity defines the load limit

The single specification that determines suitability is the 300W maximum output power capacity. Connected devices must not exceed this combined wattage for battery-backed operation. Three outlets provide battery backup and surge protection; the other three provide surge protection only. The unit measures 6.5 inches high, 3.6 inches wide and 11.2 inches deep, weighing 13.8 lbs.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $143.99
Cheaper than about 86% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameAPC
Product lineBack-UPS
Model nameBK500BLK
Power
Input line frequency50/60 Hz
Power inputNEMA 5-15P
Volt-ampere rating0–500 VA
Power rating0–500 W
Voltage output120 V
AC output frequency50/60 Hz +/- 3 Hz

Questions about this item

How long does the internal battery typically last before it needs replacing?

The internal battery is designed for several years of service; APC recommends replacement when the self-test indicates reduced capacity.

What is the maximum runtime at the full 300-watt load?

The unit provides 3.4 minutes of backup power when all 300 watts are being drawn.

How much heat does the UPS produce when running continuously at full load?

At 300 watts the unit dissipates heat equivalent to its power rating; the tower design vents passively without a fan.

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