Dell Mellanox CX4121C ConnectX-4 Dual Port 25GB SFP28 Low Profile

Marsoni

M251S

$29.00

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

Dell Mellanox CX4121C ConnectX-4 Dual Port 25GB SFP28 Low ProfileItem Attributes Brand Dell Manufacturer Mellanox NIC 01 Type Network Interface Card NIC 02 Form Factor PCIE Low Profile NIC 03 Type of Port 1 SFP28 NIC 04 QTY Ports 1 2 NIC 05 Speed Ports 1 25 NIC 06 Type of Port 2 NIC 07 QTY Ports 2 NIC 08 Speed Ports 2 NIC 09 Generation Visibility Visible Individually Dell Part Numbers 20NJD; V49HW NetSuite Name NIC MX CX4121C X4 DUAL 25GBE SFP28 LP Avalara Tax Code PC070000 Item Message Label Item Message

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I recently purchased the Siless 50 mil (1.3mm) 52 sqft Car Sound Deadening mat, and I am delighted with the results it has delivered. Right from the start, I was impressed with the packaging, which ensured the product arrived in perfect condition. One of the standout features of this sound deadening mat is its ease of use. It was a breeze to cut and modify according to my specific needs. Whether I needed to cover specific areas or customize the size, the mat accommodated my requirements effortlessly. This flexibility made the installation process a breeze. The Siless Sound Deadening mat has proven to be highly effective in reducing outside noise within my vehicle. With just a half cabin install, I noticed a significant reduction of approximately 10 decibels, making my driving experience much quieter and more comfortable. The mat acted as a reliable barrier against external noise, allowing me to enjoy a more peaceful ride. Furthermore, the sound quality from my vehicle's audio system experienced a noticeable improvement. The Siless mat effectively dampened vibrations and minimized resonance, resulting in cleaner and more refined audio output. The mat's thickness of 50 mil (1.3mm) ensures optimal sound absorption, contributing to its effectiveness in creating a quieter and more enjoyable driving environment. I can now appreciate the full range of tones and enjoy a more immersive music experience during my drives. Overall, I highly recommend the Siless 50 mil Car Sound Deadening mat for anyone seeking a reliable and effective solution to reduce noise and enhance audio quality in their vehicle. The easy cutting and modifying process, along with the excellent packaging, contribute to a seamless installation experience. With a significant reduction in outside noise and an improvement in sound system performance, this sound deadening mat has exceeded my expectations.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 27, 2023

Verified Purchase

Charles H.

Grantham, US

★★★★★ 5

Good quality sound deadener at a good price.

Model: NewSLS50_52

Quality sound deadening that adheres to body panels well. You can easily hear the vibration reduction after just the first piece by tapping on the body panel before and after.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on November 21, 2025

Verified Purchase

Nick Frazier

Grantham, US

★★★★★ 4

Good stuff at a good price

Model: NewSLS50_52

Works well and sticks well. I used a roller and it has been over a year and everything still sticking as good as day i put it everywhere. I didnt use any adhesive but I did wipe everything down with acetone before I applied. Good stuff at a good price

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Reviewed in the United States on November 23, 2025

Verified Purchase

Darren Gray

Massapequa, US

★★★★★ 5

Good value

Model: NewSLS50_52, Model: NewSLS50_52

Working perfectly. Install of stereo equipment and carpet left me wanting some heat and sound resistant materials.

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Reviewed in the United States on March 23, 2026

Verified Purchase

Tharin

Chelsea, US

★★★★★ 5

BUY THIS ONE!

Model: NewSLS50_52

This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ. Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that. Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.

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Reviewed in the United States on April 26, 2025