NEW nVidia Mellanox MMA4Z00-NS400 400GBASE-SR4 850nm DOM MMF OSFP Transceiver
SKU: 18857441872

NEW nVidia Mellanox MMA4Z00-NS400 400GBASE-SR4 850nm DOM MMF OSFP Transceiver

$418.50 $465.00
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

NEW nVidia Mellanox MMA4Z00-NS400 400GBASE-SR4 850nm DOM MMF OSFP TransceiverNVIDIA Mellanox MMA4Z00 NS400 is an OSFP 400 Gigabit Ethernet transceiver supporting 400GBASE SR4 transmission over multimode fiber. It operates at 850 nm and uses an MPO 12 APC optical interface. The module provides up to 50 m reach on MMF and supports Digital Optical Monitoring (DOM). This transceiver is designed for high density 400 GbE ports in data center switches and network adapters equipped with OSFP slots. It supports short reach parallel

NVIDIA Mellanox MMA4Z00-NS400 is an OSFP 400 Gigabit Ethernet transceiver supporting 400GBASE-SR4 transmission over multimode fiber. It operates at 850 nm and uses an MPO-12/APC optical interface. The module provides up to 50 m reach on MMF and supports Digital Optical Monitoring (DOM).

This transceiver is designed for high-density 400 GbE ports in data center switches and network adapters equipped with OSFP slots. It supports short-reach parallel multimode fiber links using four transmit and four receive channels. The hot-pluggable OSFP form factor enables replacement without powering down the host system.

NVIDIA Mellanox MMA4Z00-NS400: 400GbE OSFP multimode transceiver with MPO-12/APC connector, 850 nm wavelength, and up to 50 m reach for short-range high-speed data center links.

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SKU: 18857441872

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4.5 ★★★★★
Based on 222 reviews
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K
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K
Boise, US
★★★★★ 3
Immediate neck and back pain
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
Nice full pillows that holds its shape, BUT was NOT good head and neck support. I noticed an immediate difference. From non existent to growing neck pain in the first night’s use, through the week.
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Reviewed in the United States on May 30, 2026
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Verified Purchase
Geydis Amador
New York, US
★★★★★ 5
Soft and comfortable
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows are incredibly soft and comfortable. They provide great support while still feeling plush and cozy. I’ve been sleeping much better since I started using them.
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Reviewed in the United States on June 2, 2026
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Verified Purchase
Layton Phillips
Waukegan, US
★★★★★ 5
Great pillow, but the cooling effect depends on the cover
Color: Blue-ice Plus, Size: King(Pack of 2)
I really like this pillow overall. It’s comfortable, supportive, and feels well made. When you use it without a pillowcase, it definitely feels cool to the touch and does what it claims in terms of that initial cooling sensation. However, once you put a pillowcase on it, you can’t really feel the cooling effect anymore. I’ve tried multiple different pillowcases made from different materials, and none of them really let that cool feeling come through. That said, I still love the pillow itself. It’s comfortable and supportive enough that I’m keeping it. Just keep in mind that the cooling feature works best without a cover, which isn’t ideal for everyone. Overall, a good pillow — just manage expectations about the cooling effect once it’s covered.
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Reviewed in the United States on February 17, 2026
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Verified Purchase
Hannah N. Ford
Houston, US
★★★★★ 5
Cooling and holds shape.
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
Very nice pillow for the price is also holding up well and holding shape very cool and comfortable to the touch. Best pillow I found in a long time.
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Reviewed in the United States on April 28, 2026
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Verified Purchase
smmt
Louisville, US
★★★★★ 5
Best Pillow Ever
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Best pillow ever. Although it still gets "hot", it does take longer to get "hot". I love this pillow. I was buying a new pillow almost every 3 months. Other pillows would either remain rock hard or go flat. I was concerned at first when reading the description as I though the memory foam would be big pieces. They are soft fluffy pieces. I had to remove almost half of the foam to get the pillow to what works for me. I have not had to put any filler back in. Maybe in a couple of more months I may have to put a bit more in, but it is holding it's shape and not going flat. I do fluff it every night. This helps. I am a stomach sleeper. I have bought the expensive purple pillow and hated it so much I gave it to my daughter. This QUTOOL Pillow is the best! I bought a 2 pack. Have not used the other pillow yet, but I feel I may actually go years for once without having to buy a pillow as I have the 2nd one set aside if the first one gets to a point in need replacement. I have bought Dollar Store pillows. I have bought $300 pillows. None of them even come close to this pillow and the way you can adjust this pillow for you. The pillows came in a white mesh like bag. I keep all the unused "stuffing" in this bag. I have it hanging in my closet and I just fluff the bag once a month to keep the filling fresh so it is ready if and when I need it. Coming from someone who has trouble staying asleep, neck issues, a stomach sleeper who hate those flat pillows manufacturers think stomach sleepers like but actually hate, buy this pillow. Just buy it. Best Pillow for a picky person like me. Buy 2 or more so if you have to stay at a hotel, you can take your own pillow.
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Reviewed in the United States on June 15, 2025

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