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Green rectangular circuit board with two silver SFP cages and gold edge connector

DELL

DELL R887V Mellanox CX4121C ConnectX-4 Lx 25Gbps SFP 2 Port Daughter Card

SKU CH-8ZZQ-JVQYX

Adds dual-port 25 Gbps SFP networking to compatible Dell servers via a ConnectX-4 Lx daughter card

  • Speed25Gbps
  • Wake On LANNo
  • Dual 25 Gbps ports deliver high-throughput server connectivity
  • ConnectX-4 Lx controller provides low-latency packet processing
  • SFP cages accept standard 25 Gbps transceivers
  • Dell R887V part ensures validated compatibility
  • Daughter-card form factor fits supported Dell server slots

Dell R887V ConnectX-4 Lx 25Gbps Daughter Card

The Dell R887V is a dual-port 25Gbps SFP network daughter card built on the Mellanox ConnectX-4 Lx controller. It targets server administrators who need high-throughput wired connectivity in a compact daughter-card form factor for compatible Dell platforms. The adapter provides two SFP cages for fibre or direct-attach copper links at 25 gigabits per second per port.

Sustained 25Gbps throughput on dual SFP ports

Under continuous load the card maintains line-rate 25Gbps performance across both ports simultaneously, leveraging the ConnectX-4 Lx engine for low-latency packet processing and efficient CPU offload. The dual-port design allows link aggregation or separate traffic streams without sharing a single 25Gbps pipe. Wake-on-LAN is not supported, so the adapter remains inactive during low-power host states.

Daughter-card installation in supported Dell servers

Installation consists of seating the card into the proprietary daughter-card connector on a qualified Dell server motherboard; no separate PCIe slot or bracket is required. The main integration risk is attempting to fit the card into a non-supported chassis or motherboard revision where the connector keying or firmware qualification differs. Verify the exact server model compatibility before purchase to avoid a mechanical or firmware mismatch.

Highlights

  • Dual 25 Gbps ports deliver high-throughput server connectivity
  • ConnectX-4 Lx controller provides low-latency packet processing
  • SFP cages accept standard 25 Gbps transceivers
  • Dell R887V part ensures validated compatibility
  • Daughter-card form factor fits supported Dell server slots

Specifications

BrandDell
Part NumberR887V
Speed25Gbps
Wake On LANNo

Questions about this item

Does the 25 Gbps ConnectX-4 Lx card draw enough power to need extra cooling in a Dell server?

The Dell R887V daughter card plugs directly into the server's dedicated mezzanine slot and is cooled by the system fans already present in the chassis.

What Dell server slot accepts the R887V dual-port 25 Gbps daughter card?

The R887V fits the proprietary OCP mezzanine connector found in compatible Dell PowerEdge servers; no standard PCIe bracket is used.

Will the ConnectX-4 Lx 25 Gbps daughter card work in an older PowerEdge that only has PCIe 2.0 slots?

The R887V uses the server's OCP mezzanine interface, not a PCIe add-in slot, so it installs only in systems designed for this form factor.

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