We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular circuit board with silver SFP+ cages and gold RJ45 ports

DELL

DELL Broadcom 57142 2x10GBe SFP+ 2x1GBe RJ45 Network Daughter Card

SKU CH-1P47-1GG7F

Adds two 10 Gb SFP+ and two 1 Gb RJ45 ports via a PCI-Express daughter card

  • Speed10Gbps
  • InterfacePCI-Express
  • Dual 10 Gbps SFP+ ports deliver high-throughput server links
  • Dual 1 Gbps RJ45 ports provide standard copper connectivity
  • Broadcom 57142 controller ensures reliable packet processing
  • PCI-Express interface enables fast host communication
  • Compact daughter-card form factor fits dense server chassis

Dell Broadcom 57142 Quad-Port Network Card

This Dell Broadcom 57142 daughter card adds four wired network ports to a compatible server. It provides two 10Gbps SFP+ ports and two 1Gbps RJ45 ports through a single PCI-Express slot. The compact plug-in design suits high-performance server applications.

Practical Limits of PCI-Express and SFP+

The card uses a PCI-Express interface, so total throughput depends on the slot generation and lane count available in the host system. Each 10Gbps SFP+ port requires a compatible transceiver module and fibre or direct-attach cable, which are not included. The 1Gbps RJ45 ports work with standard Cat5e or better copper cabling.

Replaces Single-Port or Slower Adapters

This quad-port card replaces multiple single-port adapters, freeing expansion slots and reducing cabling complexity. The jump is worth it when a server needs both 10Gbps uplinks and 1Gbps management or backup links simultaneously. It is not for systems lacking a compatible PCI-Express slot or for buyers who need more than four ports.

Highlights

  • Dual 10 Gbps SFP+ ports deliver high-throughput server links
  • Dual 1 Gbps RJ45 ports provide standard copper connectivity
  • Broadcom 57142 controller ensures reliable packet processing
  • PCI-Express interface enables fast host communication
  • Compact daughter-card form factor fits dense server chassis

Specifications

BrandDell
Part NumberNWMNX
Speed10Gbps
InterfacePCI-Express

Questions about this item

Should I choose the 10 Gbps SFP+ ports or the 1 Gbps RJ45 ports for my server uplink?

Use the two 10 Gbps SFP+ ports for high-throughput uplinks to core switches. The two 1 Gbps RJ45 ports suit management traffic or legacy copper links. Both pairs operate simultaneously on the same Broadcom 57142 controller.

What does the 10 Gbps rating deliver inside a rack server?

The card provides two 10 Gbps SFP+ lanes and two 1 Gbps RJ45 lanes through a single PCI-Express slot. Aggregate throughput depends on the host bus width and CPU offload, but each SFP+ port can sustain line-rate 10 Gbps with supported transceivers.

Which PCI-Express generation does the NWMNX card use and what bandwidth ceiling does that impose?

The adapter plugs into a standard PCI-Express slot. The Broadcom 57142 controller negotiates the link speed supported by the server platform, so the practical ceiling matches the slot generation installed in your chassis.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.