Dell Mellanox CX516A ConnectX-5 Ex 100Gb NIC Full Details
| Specification | Details |
|---|---|
| Brand | Mellanox / NVIDIA |
| Dell Part Number | 71C1T |
| Mellanox Model | MCX516A-CDAT |
| Product Type | Server Network Interface Card (NIC) |
| Ports | Dual-Port QSFP28 |
| Maximum Speed | 100GbE per port |
| Supported Speeds | 1G / 10G / 25G / 40G / 50G / 100G |
| Interface | PCIe Gen4 x16 |
| Backward Compatible | PCIe Gen3 |
| Form Factor | Full Height + Low Profile Bracket |
| Chipset | Mellanox ConnectX-5 Ex |
| Protocol | Ethernet |
| RDMA Support | Yes |
| RoCE Support | Yes |
| SR-IOV | Yes |
| NVMe-oF Support | Yes |
| Operating Temperature | 0°C – 55°C |
| OS Support | VMware ESXi, Windows Server, Linux, Hyper-V |
Main Features
- Ultra-fast 100Gb networking
- Low latency enterprise networking
- AI / HPC / Storage workload ready
- VMware virtualization optimized
- NVMe over Fabrics support
- Hardware offloading support
- Data center grade performance
- Dual QSFP28 optical/DAC support
Supported Cables & Modules
এই NIC এ নিচেরগুলো ব্যবহার করা যায়ঃ
- QSFP28 DAC Cable
- QSFP28 SR4 Optical Module
- QSFP28 LR4 Optical Module
- Active Optical Cable (AOC)
Compatible Servers
এই NIC সাধারণত নিচের server গুলোতে বেশি ব্যবহার হয়ঃ
- Dell PowerEdge R640
- Dell PowerEdge R740
- Dell PowerEdge R740xd
- Dell PowerEdge R750
- HPE DL380 Gen10
- Supermicro X11/X12 Servers
Performance Information
| Feature | Capability |
|---|---|
| Latency | Extremely Low |
| CPU Usage | Very Low |
| Throughput | Very High |
| Virtual Machines | Excellent |
| Storage Traffic | Excellent |
| AI / HPC | Excellent |
| Ceph / Proxmox | Excellent |
Important Notes
- Full 200Gb aggregate bandwidth পেতে PCIe Gen4 x16 দরকার।
- PCIe Gen3 এ bottleneck হতে পারে যদি দুইটা port একসাথে full 100Gb run করে।
- Desktop PC তে ব্যবহার করলে extra cooling/fan দরকার হতে পারে।
- Linux kernel এ driver support খুব ভালো।
Facebook / Website Product Description
Dell Mellanox CX516A ConnectX-5 Ex Dual-Port 100Gb QSFP28 NIC Card (71C1T)
Boost your server networking with enterprise-grade 100GbE performance. The Mellanox ConnectX-5 Ex delivers ultra-low latency, high throughput, and advanced RDMA acceleration for virtualization, AI, storage, cloud, and data center workloads. Featuring dual QSFP28 ports and PCIe Gen4 x16 interface, this adapter is ideal for Dell PowerEdge, HPE, and enterprise servers.
✔ Dual-Port 100Gb QSFP28
✔ PCIe Gen4 x16
✔ RDMA / RoCE Support
✔ VMware & Linux Ready
✔ Low Latency Enterprise Networking
✔ Data Center & AI Optimized
✔ Full Height + Low Profile Bracket Included
Compatible with Dell, HPE, Supermicro & other enterprise servers.







