Powerguard Extreme Computer Power Filter

Powerguard Extreme Computer Protector

14 day no questions asked on all returns. Exclusions apply.
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Available on 12 Months Interest Free.
How it works
The Extreme Computer Power Filter has a Lifetime Warranty & $120,000 Connected Equipment Warranty

PowerGuard Extreme Computer is a combination of the PowerGuard Original, Continuous Power Filter and Ultra Filter. The protection strategy is arranged with the PowerGuard Original patented Active Intelligent Sensing front ending the whole of the PGXC protection to the supply voltage input, protecting all Eight Outlets and is then linked in conjunction with Cascade Multi-stage Filtering on the AC Mains.

The Primary bank of six outlets is CPF filtered with additional crossover filtering to the Isolated Dual Outlet bank, arranged in a Cascade configuration. The Isolated Dual Outlet bank is totally isolated from the Primary bank and final filtered.

The AC filter is a similar specification as the Continuous Power Filter for clamping and energy dissipation, but is arranged in a cascade, multi-stage circuit design – the benefit is that rather than totally block all the excess energy and risk causing a back EMF, that could damage neighbouring unprotected equipment, the protection is designed to capture, absorb and dissipate the excess energy or transient interference. Residual interference is captured by each successive stage; the cascade circuit design captures any graduated overflow at each successive stage of the filter providing cleaner power.

Ultra2 Line Filtering incorporates Bit Stream Filtering (BSF) of the incoming data, capturing line noise and providing cleaner filtered communications. With reduced line noise, Modems, Multi Function Centres and Facsimile Machine can operate closer to their optimum speeds, with less drop back and drop out where line noise has been a problem in the past.


>More than double the AC Mains protection of conventional multi outlet boards
>Cascade Multi Stage Filtering, diverts for:
 - Spike Protection
 - RFI and EMI Filtration

>Patented Active Intelligent Sensing, isolates for:
 - True AC Mains Over Voltage, Surge and Phase Loss Protection
 - Under Voltage, Brown Out (Sag) Protection

>Line Share Protection (Bit Stream Filtration)
 - Filtered dial up protection
 - Cleaner lines provide faster upload and download
 - Reduced drop back and dropout
 - ADSL connection supported (ADSL filters required)


All Product Details
Product Type Surge Protectors
Brand Powerguard
Model PGXC3708
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Powerguard Extreme Computer Power Filter


We aim to dispatch orders within 2 days. Delivery costs are calculated based on your location and the size of your order. Furniture may take up to 8 weeks to deliver as most products are made specifically for your order. Some goods may take longer to deliver if a product is currently not in stock. A staff member will contact you where this occurs.

Free Pick Up In Store

Can’t wait for delivery or don’t want to pay additional charges? It’s incredibly simple to pick up your online order in store and get your hands on your product quickly and easily. Simply select the Free pick up in store option and head to your nearest Harvey Norman store to pick up your order.

  1. During checkout, select “Free pick up in store” and select your preferred store.
  2. After your order is placed, you will receive an “order confirmation email” with your “order confirmation number” (this is usually sent out within 2 hours).
  3. Once the store has confirmed your order and reserved the stock, you will receive an email “Ready for collection”
  4. Bring your "order confirmation number" to the store you selected for pick up, along with photo ID and the credit card you used to make the order.
  5. Speak to one of our staff and your order should be processed in minutes.
Easy returns

If you feel your product has failed a Consumer Guarantee (as defined by New Zealand Consumer Law) then don't worry you can easily return it to your local Harvey Norman store. We'll even pay for the postage if you live in an area where there is no store. Our returns policy covers any purchased item (conditions apply).

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