
Monoprice
Monoprice 109198 6 Outlet Slim Surge Protector
★★★★★
A slim, six-outlet surge protector with 540 joules of protection and a three-foot cord — surprisingly compact for a full-size power strip.
$17.99*$23.35Save 22%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Key Features
This model includes six protected power outlets
The clear plastic tab at the top of the unit illuminates green to indicate when the surge protector
6 protected power outlets
Specifications
Outlets
6
Indicator Light Color
Green
Indicator Light Material
Clear Plastic
Pros & Cons
👍 Pros
- Slim form factor keeps desk and shelf profiles clean without the bulk of standard-width power strips — fits neatly behind monitors or in entertainment center cable channels.
- Six protected outlets accommodate a full desktop peripheral set — monitor, computer, speakers, lamp, charger, and a spare — without daisy-chaining or adapters.
- Green LED indicator light provides immediate visual confirmation that the 540-joule surge protection circuit is still functional — no guessing whether the unit has been depleted.
- Combined power/circuit breaker switch provides both convenient master cutoff and automatic overload protection without requiring a separate fuse replacement.
- 540-joule rating handles typical residential and light commercial transients from appliance switching, lighting circuits, and minor grid fluctuations that would otherwise reach connected electronics.
👎 Cons
- The three-foot cord limits placement flexibility — outlet locations that are more than a short reach away from the intended device cluster require an upstream extension cord, which reduces surge protection effectiveness.
- 540 joules is entry-level protection for surge suppression — high-end audio equipment, NAS drives, or workstation-class hardware would benefit from a higher-joule unit with EMI/RFI filtering.
- The white color is clean on desks but shows scuff marks and discoloration under regular furniture or floor use more readily than darker alternatives.
- No USB charging ports are included — devices that charge via USB require a separate adapter in one of the six outlets, effectively reducing usable outlet count.
- At six outlets with no spacing accommodations, larger wall adapters (power bricks) may block adjacent outlets, reducing the effective outlet count depending on the devices connected.
Frequently Asked Questions
What does 540 joules of surge protection actually mean for my devices?
Joules measure how much surge energy the protector can absorb before its protection degrades. At 540 joules, the Monoprice 109198 handles typical household power spikes from switching transients and minor grid events. It is appropriate for desktop electronics and AV equipment — not for whole-home protection or sensitive medical devices.
How do I know if the surge protection on the 109198 is still active?
The clear plastic indicator tab at the top of the unit illuminates green when surge protection is functioning. If the LED goes dark or changes, the protection circuit has been depleted and the unit should be replaced — it will still pass power but will no longer suppress surges.
Does the 109198 include a circuit breaker or just a power switch?
It includes a combined power/circuit breaker switch. The breaker trips automatically under overload conditions, which protects your devices from over-current events without blowing a household fuse.
Is the three-foot cord long enough for most desk or entertainment center setups?
For setups where the wall outlet is within a short reach — desk right-angle setups or entertainment centers with nearby outlets — three feet is workable. For outlet placements behind furniture or across a room, a longer extension cord would be needed upstream of this unit.
Can I plug this into a UPS (uninterruptible power supply)?
You can, but it's not necessary — the UPS already provides surge suppression and conditioned power. Stacking surge protectors does not compound protection and can sometimes trip the UPS's overload detection. Plug this directly into a wall outlet for normal use.