Mellanox MCX556A-EDAT ConnectX-5 Ex VPI adapter card
[shortdesc] ConnectX-5 Ex InfiniBand/Ethernet adapter card, EDR IB (100Gb/s) and 100GbE, dual-port QSFP28, PCIe Gen4 x16, tall bracket [/shortdesc]
[properties]
| Product Name | NVIDIA ConnectX-5 Ex InfiniBand/Ethernet Adapter Card (MCX556A-EDAT) |
| Product Description | The NVIDIA ConnectX-5 Ex InfiniBand/Ethernet Adapter Card (MCX556A-EDAT) is a high-performance network adapter designed for data centers and high-performance computing environments. It features dual 100Gb/s ports, supports PCIe 4.0 x16 interface, and offers low latency and high message rate capabilities. |
| Product Family | NVIDIA ConnectX-5 Ex Series |
| Product Type | Network Adapter Card |
| Connector | Dual QSFP28 InfiniBand and Ethernet (copper and optical) |
| Data Rate | Ethernet: 1/10/25/40/50/100 Gb/s, InfiniBand: SDR/DDR/QDR/FDR/EDR |
| PCI Express Gen 4.0 | SERDES @ 16.0 GT/s, 16 lanes (2.0 and 1.1 compatible) |
| Voltage | 12V |
| Maximum Current | Not specified |
| Typical Power (PCIe Gen 4.0) | 19.3 W |
| Maximum Power (PCIe Gen 4.0) | 23.4 W |
[/properties]
[specifications]
| Size | 4.89 in x 2.71 in (124.22 mm x 68.90 mm) |
| Weight | Not specified |
| Message Rate | 215 Mpps |
| Sub 0.8 ”s latency | Yes |
| Supported Architectures | x86, Power, Arm |
| Airflow Requirements | - Passive Cable: 350 LFM<br>- Active 1.5W Cable: 500 LFM<br>- Active 2.5W Cable: 600 LFM |
| Maximum Power Available Through QSFP28 Port | 5 W per port |
| Operating Temperature | - Operational: 0°C to 55°C<br>- Non-operational: -40°C to 70°C |
| Humidity | - Operational: 10% to 85% relative humidity<br>- Non-operational: 10% to 90% relative humidity |
| Altitude (Operational) | 3050 m |
| Regulatory Compliance | Safety: CB / cTUVus / CE<br>EMC: CE / FCC / VCCI / ICES / RCM<br>RoHS: RoHS R6 |
[/specifications]
Mellanox MCX556A-EDAT Adapter Card
The MCX556A-EDAT is a PCIe HHHL form factor adapter card. It is remote direct memory access (RDMA)-enabled and has advanced application offload capabilities, making it ideal for high-performance computing, cloud applications, and storage platforms. The MCX556-EDAT provides low latency, high message rate and advanced features such as MPI and SHMEM/PGAS offloads.
Key Features:
- 100Gb/s connectivity per port
- Embedded PLCe switch (Gen4)
- Tag matching and rendezvous offloads
- RoHS compliant
- NVMe-oF offloads
Product Information
Product Information
Shipping & Returns
Shipping & Returns


Mellanox MCX556A-EDAT ConnectX-5 Ex VPI adapter card
Mellanox MCX556A-EDAT ConnectX-5 Ex VPI adapter card
[shortdesc] ConnectX-5 Ex InfiniBand/Ethernet adapter card, EDR IB (100Gb/s) and 100GbE, dual-port QSFP28, PCIe Gen4 x16, tall bracket [/shortdesc]
[properties]
| Product Name | NVIDIA ConnectX-5 Ex InfiniBand/Ethernet Adapter Card (MCX556A-EDAT) |
| Product Description | The NVIDIA ConnectX-5 Ex InfiniBand/Ethernet Adapter Card (MCX556A-EDAT) is a high-performance network adapter designed for data centers and high-performance computing environments. It features dual 100Gb/s ports, supports PCIe 4.0 x16 interface, and offers low latency and high message rate capabilities. |
| Product Family | NVIDIA ConnectX-5 Ex Series |
| Product Type | Network Adapter Card |
| Connector | Dual QSFP28 InfiniBand and Ethernet (copper and optical) |
| Data Rate | Ethernet: 1/10/25/40/50/100 Gb/s, InfiniBand: SDR/DDR/QDR/FDR/EDR |
| PCI Express Gen 4.0 | SERDES @ 16.0 GT/s, 16 lanes (2.0 and 1.1 compatible) |
| Voltage | 12V |
| Maximum Current | Not specified |
| Typical Power (PCIe Gen 4.0) | 19.3 W |
| Maximum Power (PCIe Gen 4.0) | 23.4 W |
[/properties]
[specifications]
| Size | 4.89 in x 2.71 in (124.22 mm x 68.90 mm) |
| Weight | Not specified |
| Message Rate | 215 Mpps |
| Sub 0.8 ”s latency | Yes |
| Supported Architectures | x86, Power, Arm |
| Airflow Requirements | - Passive Cable: 350 LFM<br>- Active 1.5W Cable: 500 LFM<br>- Active 2.5W Cable: 600 LFM |
| Maximum Power Available Through QSFP28 Port | 5 W per port |
| Operating Temperature | - Operational: 0°C to 55°C<br>- Non-operational: -40°C to 70°C |
| Humidity | - Operational: 10% to 85% relative humidity<br>- Non-operational: 10% to 90% relative humidity |
| Altitude (Operational) | 3050 m |
| Regulatory Compliance | Safety: CB / cTUVus / CE<br>EMC: CE / FCC / VCCI / ICES / RCM<br>RoHS: RoHS R6 |
[/specifications]
Mellanox MCX556A-EDAT Adapter Card
The MCX556A-EDAT is a PCIe HHHL form factor adapter card. It is remote direct memory access (RDMA)-enabled and has advanced application offload capabilities, making it ideal for high-performance computing, cloud applications, and storage platforms. The MCX556-EDAT provides low latency, high message rate and advanced features such as MPI and SHMEM/PGAS offloads.
Key Features:
- 100Gb/s connectivity per port
- Embedded PLCe switch (Gen4)
- Tag matching and rendezvous offloads
- RoHS compliant
- NVMe-oF offloads
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
[shortdesc] ConnectX-5 Ex InfiniBand/Ethernet adapter card, EDR IB (100Gb/s) and 100GbE, dual-port QSFP28, PCIe Gen4 x16, tall bracket [/shortdesc]
[properties]
| Product Name | NVIDIA ConnectX-5 Ex InfiniBand/Ethernet Adapter Card (MCX556A-EDAT) |
| Product Description | The NVIDIA ConnectX-5 Ex InfiniBand/Ethernet Adapter Card (MCX556A-EDAT) is a high-performance network adapter designed for data centers and high-performance computing environments. It features dual 100Gb/s ports, supports PCIe 4.0 x16 interface, and offers low latency and high message rate capabilities. |
| Product Family | NVIDIA ConnectX-5 Ex Series |
| Product Type | Network Adapter Card |
| Connector | Dual QSFP28 InfiniBand and Ethernet (copper and optical) |
| Data Rate | Ethernet: 1/10/25/40/50/100 Gb/s, InfiniBand: SDR/DDR/QDR/FDR/EDR |
| PCI Express Gen 4.0 | SERDES @ 16.0 GT/s, 16 lanes (2.0 and 1.1 compatible) |
| Voltage | 12V |
| Maximum Current | Not specified |
| Typical Power (PCIe Gen 4.0) | 19.3 W |
| Maximum Power (PCIe Gen 4.0) | 23.4 W |
[/properties]
[specifications]
| Size | 4.89 in x 2.71 in (124.22 mm x 68.90 mm) |
| Weight | Not specified |
| Message Rate | 215 Mpps |
| Sub 0.8 ”s latency | Yes |
| Supported Architectures | x86, Power, Arm |
| Airflow Requirements | - Passive Cable: 350 LFM<br>- Active 1.5W Cable: 500 LFM<br>- Active 2.5W Cable: 600 LFM |
| Maximum Power Available Through QSFP28 Port | 5 W per port |
| Operating Temperature | - Operational: 0°C to 55°C<br>- Non-operational: -40°C to 70°C |
| Humidity | - Operational: 10% to 85% relative humidity<br>- Non-operational: 10% to 90% relative humidity |
| Altitude (Operational) | 3050 m |
| Regulatory Compliance | Safety: CB / cTUVus / CE<br>EMC: CE / FCC / VCCI / ICES / RCM<br>RoHS: RoHS R6 |
[/specifications]
Mellanox MCX556A-EDAT Adapter Card
The MCX556A-EDAT is a PCIe HHHL form factor adapter card. It is remote direct memory access (RDMA)-enabled and has advanced application offload capabilities, making it ideal for high-performance computing, cloud applications, and storage platforms. The MCX556-EDAT provides low latency, high message rate and advanced features such as MPI and SHMEM/PGAS offloads.
Key Features:
- 100Gb/s connectivity per port
- Embedded PLCe switch (Gen4)
- Tag matching and rendezvous offloads
- RoHS compliant
- NVMe-oF offloads














