Hollyland D-TAP to DC 2.1 Power Supply Cable For Mars 300/Mars 400/Mars 400S
SKU: 53313047231

Hollyland D-TAP to DC 2.1 Power Supply Cable For Mars 300/Mars 400/Mars 400S

$37.80 $42.00
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Description

Hollyland D-TAP to DC 2.1 Power Supply Cable For Mars 300/Mars 400/Mars 400SPower your Mars 4K, Cosmo C1, 300, 400, or 400S transmitter or receiver with the D Tap to 2. 1mm Barrel DC Power Cable from Hollyland. The cable connects to a separately available D Tap power source, such as a professional V mount or Gold mount battery, and plugs into your receiver or transmitter with the 2. 1 VDC barrel connector. The cable measures 23. 6" in length. CompatibilityHollyland Mars 4K, Cosmo C1, 300, 400, or 400S transmitter or receiver

Power your Mars 4K, Cosmo C1, 300, 400, or 400S transmitter or receiver with the D-Tap to 2.1mm Barrel DC Power Cable from Hollyland. The cable connects to a separately available D-Tap power source, such as a professional V-mount or Gold mount battery, and plugs into your receiver or transmitter with the 2.1 VDC barrel connector. The cable measures 23.6" in length.

CompatibilityHollyland Mars 4K, Cosmo C1, 300, 400, or 400S transmitter or receiver
D-Tap power source

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SKU: 53313047231

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4.2 ★★★★★
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Ken Hill
Waukegan, US
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support. It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.) I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night. I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable. I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing. Would highly recommend.
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Reviewed in the United States on May 7, 2026
M
Verified Purchase
Molly Farrell
Natrona Heights, US
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
A
Verified Purchase
Akeem
Belleville, US
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
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Reviewed in the United States on May 9, 2026
K
Verified Purchase
Kim Groetsch
Pawtucket, US
★★★★★ 5
BEST, MOST COMFORTABLE PILLOWS EVER!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I've used others.BEST PILLOWS EVER! Firm, cooling and supportive. LOVE THESE!
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Reviewed in the United States on May 28, 2026
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Juanita
Pawtucket, US
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok. One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable. Overall, great quality, comfortable, and worth the purchase.
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Reviewed in the United States on June 3, 2026

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