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NVIDIA · Network Adapter

MCX516A-CDAT

NVIDIA ConnectX-5 EN Network Adapter

Manufacturer
NVIDIA
Family / generation
ConnectX-5
Product type
Network Adapter
Lifecycle
Discontinued / EOL

Current availability is confirmed at RFQ.

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Product overview

MCX516A-CDAT is the exact OPN for an NVIDIA ConnectX-5 Ethernet adapter with two QSFP28 ports supporting up to 100Gb/s Ethernet through a PCIe 3.0/4.0 x16 host interface. NVIDIA documents PCIe 4.0 capability while noting that the manual revision had certification on PCIe 3.0 servers and PCIe 4.0 interface testing pending. Buyers should verify the complete MCX516A-CDAT OPN and host qualification for this dual-port configuration.

Exact identifiers

Legacy OPNMCX516A-CDAT
NVIDIA SKU900-9X5AD-0056-ST7
PSIDMT_0000000013

Verified technical specifications

Protocol
ethernet
Maximum network speed
100 Gb/s
Port count
2
Port type
QSFP28
PCIe generation
PCIe 4.0Condition: PCIe 4.0 capability is documented; the manual revision states that MCX516A-CDAT was tested and certified with PCIe 3.0 servers and that PCIe 4.0 interface testing was pending.
PCIe lanes
x16

Lifecycle & procurement context

Manufacturer lifecycle: Discontinued / EOL

Lifecycle is manufacturer product status, not a statement of current stock. Availability and price are confirmed by RFQ.

Verified Manufacturer & OEM Sources

Official manufacturer or OEM technical sources supporting the product identity and facts shown here. These sources establish product facts; they are separate from YOSHI material inspection.

NVIDIA

NVIDIA ConnectX-5 EN PCIe Ethernet Adapter Cards User Manual

Manufacturer official · Verified 2026-09-05

Claims supported by this source

Lifecycle status
Applies at product model/family level
Manufacturer
Applies at product model/family level
Maximum network speed
Applies at Exact-MPN level
PCIe generation
Applies at Exact-MPN levelCondition: PCIe 4.0 capability is documented; the manual revision states that MCX516A-CDAT was tested and certified with PCIe 3.0 servers and that PCIe 4.0 interface testing was pending.
PCIe lanes
Applies at Exact-MPN level
Port count
Applies at Exact-MPN level
Port type
Applies at Exact-MPN level
Product category
Applies at product model/family level
Product family / generation
Applies at product model/family level
Product model
Applies at product model/family level
Product type
Applies at product model/family level
Protocol support
Applies at product model/family level

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