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Description
4 in 1 Multi-band Simultaneous SDR Radio Passive Filter, 49x45x19mm1. This product includes four independent bandpass filters, divided into four frequency bands: P1 filter (0. 5 1. 5MHz) for AM radio reception; P2 filter (4. 5 12MHz) for shortwave low frequency bands and the 40 meter amateur band; P3 filter (12 30MHz) for shortwave high frequency bands and the 20 meter, 15 meter, and 10 meter amateur bands; and P4 filter for FM broadcast frequencies (88 108MHz). 2. Can be used with a 1 to 4 active splitter to provide
1. This product includes four independent bandpass filters, divided into four frequency bands: P1 filter (0.5-1.5MHz) for AM radio reception; P2 filter (4.5-12MHz) for shortwave low-frequency bands and the 40-meter amateur band; P3 filter (12-30MHz) for shortwave high-frequency bands and the 20-meter, 15-meter, and 10-meter amateur bands; and P4 filter for FM broadcast frequencies (88-108MHz).
2. Can be used with a 1-to-4 active splitter to provide pre-filter functionality for SDR, radio, and receivers.
3. Complements the lack of a pre-filter design in all-metal aluminum-cased malachite radios, reducing interference from AM, shortwave, FM, and broadcast frequencies.
4. Enables simultaneous reception of multiple channels and multiple frequency bands.
5. Dimensions: 49x45x19mm
6. Package contents:
- Filter x 1
- Stands x 1
Specification:
| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Works well
Size: 6.5 FT, Color: Black
This thing was a life saver. It has plenty of plug ports for the price and it's not huge. The footprint is a bit bigger than some others but it's not bulky. Seems well built and the fact that I can power all my electronics and still have the USB ports to charge my phone and things is nice.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Good quality surge protector.
Size: 6.5 FT, Color: Black
It's great to have a search protector that has this much versatility. One of the spots that this is mostly needed is around the TV area. With the need to plug in TVs, DVD players, surround sound theater system equipment, Xbox and PS5's, wifi router etc. This thing has more than enough plug spaces then you can throw it at a single time. The east of having all these connecting ports available in one compact place is a big win. It also eliminates running unnecessary wires being that old the plugs you need to plug in will have it available socket. This search protector also has a very premium feel due to quality materials.
Another great feature that it has is that you can hang it or drill it to a wall due in large part to its available pre drilled holes.
Also the way that the sockets are aligned are perfect to plug different types of plugs with enough space in between. There is enough separation to make different types of plugs fit snuggly.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
This is a great surge protector and has plenty of outlets. Highly Recommend
Size: 6.5 FT, Color: Black
I attached this to the back of my nightstand. I have multiple devices in the nightstand and on top of it. This is a fantastic unit and I love it. Works Fantastic. I highly recommend.
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Reviewed in the United States on December 23, 2025
★★★★★ 5
Works as expected
Size: 6.5 FT, Color: Black
Great power expander with surge protection
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Reviewed in the United States on January 4, 2026
★★★★★ 5
The Ultimate Command Center for My Workbench
Size: 6.5 FT, Color: Black
I finally ditched the old, flimsy power strip on my workbench and mounted this DEPOW 28-in-1 Surge Protector on the wall behind it. Honestly? It was the best move I’ve made for my workspace in years.
Here is why this thing is a beast for anyone with a hobby or work bench:
Insane Outlet Capacity: With 22 AC outlets, I no longer have to play "musical chairs" with my power tools. I can keep my chargers and bench tools plugged in simultaneously without running out of room.
The Modern Tech Solution: It feels like every new gadget uses USB-A or USB-C these days. Having 6 dedicated USB ports (including 3 USB-C) built right in means I can charge my phone, tablets, and lights without using up my precious AC space with bulky "bricks."
Pro Mounting & Design: Mounting it on the wall cleared up so much clutter on the bench surface. The 6.5ft flat plug cord made it easy to reach the wall outlet even with the bench pushed flush against it.
Peace of Mind: With 2100 Joules of surge protection, I don’t have to worry about my expensive electronics or power tools getting fried during a storm.
The Bottom Line: This isn't just an extension cord; it’s a full-on power hub. If you have a mix of high-power tools and modern USB-charged gear, "this baby" truly does it all. Highly recommended for gamers, DIYers, or anyone with a home office!
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Reviewed in the United States on April 6, 2026
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