NVIDIA
NVIDIA ConnectX-5 EN 100GbE 2-Port QSFP28 PCIe 3.0 x16 Adapter, Host Management and UEFI
MCX516A-CCHT
Price on request
Conditions: Refurbished · Used
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NVIDIA
MCX512A-ACAT
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NVIDIA
NVIDIA ConnectX-5 EN 25GbE 2-Port SFP28 PCIe 3.0 x8 Ethernet Adapter
MPNMCX512A-ACAT
The NVIDIA MCX512A-ACAT is a ConnectX-5 EN Ethernet adapter with two SFP28 ports at 25GbE on a PCIe 3.0 x8 card.
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NVIDIA ConnectX-5 EN 25GbE 2-Port SFP28 PCIe 3.0 x8 Ethernet Adapter
MCX512A-ACAT · Refurbished · 1 year warranty
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Overview
The workhorse two-port 25GbE card of the ConnectX-5 EN family is the NVIDIA MCX512A-ACAT. It has two SFP28 ports at 25GbE and a PCIe Gen3 x8 interface, which fits most server slots and does not require a wider connector.
Buyers choose it for a straightforward link pair: one port to each of two switches, or one for data and one for storage. SFP28 cages accept SFP28 optics and direct attach cables, bought separately, and the switch side needs to support 25GbE.
A few similar numbers exist in the family, with differences in boot support or connector width. This ACAT build has no UEFI label in its title, so if your fleet needs a UEFI-enabled build, look at the versions that name it. Matching the full MPN avoids that kind of mismatch.
The ConnectX-5 generation is mature, with drivers available in major operating systems and hypervisors. It is a common replacement part in servers built a few years ago.
Offers are refurbished and used. Refurbished cards carry a warranty choice of 1 year or 3 years, and used cards carry 90 days. No new offer is listed. Send your quantity and server model to request pricing.
Specifications
| Manufacturer part number | MCX512A-ACAT |
|---|---|
| Brand | NVIDIA |
| Form factor | PCIe |
| PCIe interface | Gen3 x8 |
| Ports | 2 |
| Connector | SFP28 |
| Controller | NVIDIA ConnectX-5 |
| Port speed | 25GbE |
| Type | Ethernet adapter |
Specifications from the manufacturer's datasheet ↗
FAQ
- What ports does the MCX512A-ACAT have?
- Two SFP28 ports at 25GbE.
- Which PCIe interface does it use?
- PCIe Gen3 x8.
- Is a new unit offered?
- No. Refurbished and used offers are listed.
- Is it a UEFI-labeled build?
- The title does not mention UEFI.
- What warranty applies to refurbished cards?
- A choice of 1 year or 3 years.
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