5-Port Compact Industrial Gigabit IEEE 802.3bt PoE++ Unmanaged Ethernet Switch, 4*10/100/1000TX (90W/Port), 1*100/1000 SFP Slot; 9~55VDC Power Input

5-Port Compact Industrial Gigabit IEEE 802.3bt PoE++ Unmanaged Ethernet Switch, 410/100/1000TX (90W/Port), 1100/1000 SFP Slot; 9~55VDC Power Input

Marsoni

M251S

$483.00

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

5-Port Compact Industrial Gigabit IEEE 802.3bt PoE++ Unmanaged Ethernet Switch, 4*10/100/1000TX (90W/Port), 1*100/1000 SFP Slot; 9~55VDC Power InputAntaira Technologies LNP C501G SFP bt 24 is a 5 port industrial compact Gigabit PoE++ unmanaged Ethernet switch embedded with 4*10 100 1000Tx Ethernet ports that support IEEE802. 3bt for a maximum of 90W port, and 1*100 1000 dual rate SFP slot for fiber connection. The LNP C501G SFP bt is IP40 rated and DIN rail mountable. There are a standard temperature range (STD: 10C to 65C). It also provides high EFT and ESD protection for industrial networking

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Since receiving them, these king-size white goose down pillows have truly transformed my sleep. They are incredibly soft and fluffy to the touch, so plush it's hard to believe they hold their shape. Sleeping on them is like lying on a cloud. The 100% cotton cover adds extra comfort: it feels cool to the touch, breathes well throughout the night, and helps me maintain a comfortable temperature while I sleep. Furthermore, the "reinforced fiber" structure is noticeable: after several weeks of use, the pillows retain their support; they don't clump or lose their shape, ensuring consistently good rest. I find they have the ideal balance between firmness and softness: firm enough to support my neck and head, yet plush enough to adapt to my posture without creating pressure. This has improved my nights; I sleep more soundly and wake up with less stiffness in my neck. In short: these pillows combine luxury, comfort, and durability. If you're looking to improve your sleep quality with soft, firm, and breathable pillows—especially in king size—these are perfect. Definitely one of the best investments you can make for better sleep.

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Reviewed in the United States on November 30, 2025

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Nikki

West Palm Beach, US

★★★★★ 5

Comfortable all night

Size: Queen, Color: White

So cozy! The cooling effect is nice. The pillow case is super soft and my favorite part. Made well. I personally wish it was just a little thicker, but overall recommend it!

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Reviewed in the United States on May 13, 2026

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Tara

Lexington, US

★★★★★ 5

Love it

Size: Queen, Color: White

This is such a nice pillow protector. It is super soft, the zipper works great, it has a decent weight to it, and definitely keeps the pillow cooler. I’m very impressed.

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Reviewed in the United States on April 14, 2026

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Julie Lopp

Draper, US

★★★★★ 5

Great product! I love the feel of these.

Size: Queen, Color: White

“I recently purchased the Serta Power Chill Cooling Pillow Protectors, and they have been a game-changer for my sleep comfort. These pillow protectors have exceeded my expectations in several ways. First and foremost, the cooling technology is fantastic. I tend to sleep hot, especially during the summer months, and these pillow protectors have made a noticeable difference. They keep my pillows cool and comfortable throughout the night, which has led to more restful and uninterrupted sleep. The fit is also excellent. They easily slip over my standard-sized pillows and stay securely in place without any annoying bunching, wrinkles or slipping during the night. And the zipper is amazing. Having no wrinkles in my cover is easier on my hair. What’s great about these protectors is that they not only keep my pillows cool but also protect them from spills, stains, and allergens. It gives me peace of mind knowing that my pillows are safeguarded while I enjoy a cool and refreshing sleep environment. There is no noise when sleeping on this cover, it’s soft. Cleaning is a breeze. They are machine-washable and maintain their cooling properties even after multiple washes. The quality of the materials used is evident. These protectors feel durable and well-made, promising long-lasting use. While they are slightly more expensive than basic pillow protectors, the added cooling benefits and protection they offer are well worth the investment. They’ve made a significant difference in my sleep quality, and I highly recommend the Serta Power Chill Cooling Pillow Protectors to anyone seeking a cooler and more comfortable night’s sleep.”

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Reviewed in the United States on October 6, 2023