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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Replaced my old frother with this one and it's a solid step up. Seriously, better build quality, more features, and noticeably more control. The variable speed dial is genuinely useful. Being able to dial from low (protein powder, matcha) to high (thick cappuccino foam) feels like an actual upgrade. The three whisk attachments give you flexibility depending on what you're making, and the included stand is a nice touch. Helps keeps the coffee bar counter from getting cluttered. Battery life seems strong so far; one charge has lasted through multiple weeks of daily use without issue. Pros: - Variable speed dial works well across a real range (not just "low" and "high") - Three whisk heads included — good for different drink types - Stand included; compact and stays put on the counter Cons: - Singular color option. The mint green clashes with everything on my coffee bar setup; wish there were neutral alternatives. ANY alternatives! - Everyone may not like the price tag but it wasn't out of my budget and the included extra bits made it worth it for me. If your kitchen palette doesn't fight the mint green, this is a capable, well-built frother at a decent price.

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Reviewed in the United States on April 13, 2026

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Ryder Mac

Phoenix, US

★★★★★ 5

Mixes matcha well

This is great for mixing matcha due to being able to adjust the speed and make it slower or faster. The stand is a great bonus.

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Reviewed in the United States on May 27, 2026

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gayle johnson

Louisville, US

★★★★★ 5

Rechargeable hand mixed.

Blends very well and fast. Sound is very quiet. Worth the price. Recommend to friends and family. Recharges fast. Very versitatable i.e eggs, frothing and drink mixes. Good power.

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Reviewed in the United States on May 21, 2026

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Sandra Dutson

Whiting, US

★★★★★ 5

Worth the money.

It’s very nice. Good quality. Not cheap. Handles well. I’m very satisfied!

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Reviewed in the United States on May 27, 2026