Compact Industrial Gigabit IEEE 802.3bt Ethernet-to-Fiber Media Converter, 1*10/100/1000Tx (90W/Port) to 1*100/1000 SFP Slot; 12~55VDC

Compact Industrial Gigabit IEEE 802.3bt Ethernet-to-Fiber Media Converter, 110/100/1000Tx (90W/Port) to 1100/1000 SFP Slot; 12~55VDC

Marsoni

M251S

$328.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Compact Industrial Gigabit IEEE 802.3bt Ethernet-to-Fiber Media Converter, 1*10/100/1000Tx (90W/Port) to 1*100/1000 SFP Slot; 12~55VDCAntaira Technologies IMP C1000 SFP bt 24 is a compact IP30 rated gigabit Ethernet to Fiber media converter featuring a 10 100 1000TX Ethernet port that supports IEEE 802. 3bt high power PoE supplying up to 90 watts. It has a dual rate 100 1000 SFP slot and is perfectly designed to fulfill industrial applications that require distance extension and high bandwidth capabilities. This small form factor is ideal for saving space in outdoor applications

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Not really a "cooling" pillow, but better than a standard or or fiber filled pillow. All these types of pillows and other bed linens are initially cool to the touch, but they quickly heat up to match your body temperature. Although the technology currently does not exist to maintain constant cooling, pillows like this are a good compromise for now. It's nice and soft and is a good value for the price.

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Reviewed in the United States on July 30, 2025

Verified Purchase

Joseph Urban

Battle Creek, US

★★★★★ 5

New Fave

Set name: UltraCool Pillow, Standard - Medium/Firm Firmness, Item length width: 30.0 Inches

Love It so far... Its cool and comfortable... just the right firmness

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Reviewed in the United States on December 17, 2025

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Richard E. Yourish

Lexington, US

★★★★★ 3

Doesn’t stay cool long

Set name: UltraCool Pillow, Standard - Soft/Medium Firmness, Item length width: 30.0 Inches

The pillow was a little softer than I expected. It’s cool at first but at least for me heats up fast.

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Reviewed in the United States on May 11, 2024

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bryce colwell

Boise, US

★★★★★ 2

too soft, useless. but cool, kindah

Set name: UltraCool Pillow, Standard - Medium/Firm Firmness, Item length width: 30.0 Inches

the problem with these "cooling" pillows is any cooling effect is almost completely negated by a pillow case. this particular pillow is cool to the touch, but completely useless as it flattens out completely, way too soft I think for anyone. I would not recommend this "NASA" pillow for anyone for anything. Maybe for 10 bucks, but certainly not what they ask for this. I did keep it though. It is "cool" but only for a moment and your flipping it around like any other pillow. also way too soft. BUt, it has been cool enough to get me back to sleep.

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Reviewed in the United States on May 29, 2025

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Jack D King

Carnegie, US

★★★★★ 5

Fantastic pillows

Set name: UltraCool Pillow 2-Pack, King - Medium/Firm, Item length width: 40.0 Inches

I cannot say enough how happy I am with these pillows. Truly amazing. I put REST pillowcases on them and they are constantly cool/cold.

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Reviewed in the United States on August 11, 2025