Switch Series & Supported Models
Browse common switch series and models supported for each brand.
NVIDIA/Mellanox MCX621102AC-ADAT Mellanox ConnectX®-6 Dx EN Adapter Card, 25GbE, Dual-port SFP28, PCIe 4.0×8, Crypto and Secure Boot, Tall Bracket
P/N: MCX621102AC-ADAT SKU: 11405
US$269.00
Nic Types:
- MCX653105A-ECAT 100G QSFP56,Single-port,PCIe 4.0 x16
- MCX653106A-ECAT 100G QSFP56,Dual-port,PCIe 4.0 x16
- MCX653105A-HDAT 200G QSFP56,Single-port,PCIe 4.0 x16
- MCX653106A-HDAT 200G QSFP56,Dual-port,PCIe 4.0 x16
- MCX621102AC-ADAT 25G SFP28,Dual-port,PCIe 4.0 x8
- MCX623105AC-CDAT 100G QSFP56,Single-port,PCIe 4.0 x16
- MCX623106AN-CDAT 100G QSFP56,Dual-port,PCIe 4.0 x16
- MCX623105AS-VDAT 200G QSFP56,Single-port,PCIe 4.0 x16
Quantity:
-
30-day return and refund
-
3-year warranty
-
Available for delivery within 2 days
-
Free shipping for orders over
Products Highlight
- Dual 25GbE Ports, 50G Aggregate Bandwidth
- 1/10/25GbE Backward-Compatible Network Migration
- Dual SFP28 for Redundant Server Uplinks
- PCIe 4.0 x8 Platform Efficiency
- Inline IPsec and TLS Encryption Offload
- Secure Boot Hardware Root-of-Trust
Specifications
| Part Number | MCX621102AC-ADAT | Adapter Card Size | HHHL |
|---|---|---|---|
| Network Connector Type | 2 × SFP28 | Network Mode | Ethernet: 1/10/25GbE |
| Host Interface | PCIe 4.0 ×8 | Technology | Ethernet: RoCE |
| Operating Temperature | 0°C to 55°C | Storage Temperature | -40°C to 70°C |
| Environmental Compliance | RoHS Compliant | Warranty | 1-Year / 3-Year / 5-Year Support Options Available |
Applications
Certification
Features
Compare Items
| NVIDIA/Mellanox MCX621102AC-ADAT Mellanox ConnectX®-6 Dx EN Adapter Card, 25GbE, Dual-port SFP28, PCIe 4.0x8, Crypto and Secure Boot, Tall Bracket |  NVIDIA/Mellanox MCX512A-ACAT Mellanox ConnectX®-5 EN Network Interface Card, 25GbE Dual-port SFP28, PCIe Gen 3.0x8, Tall Bracket |  NVIDIA/Mellanox MCX4121A-ACAT Mellanox ConnectX®-4 Lx EN Network Interface Card, 25GbE Dual-port SFP28, PCIe3.0x8, Tall Bracket | |
|---|---|---|---|
| Network Connector Type | 2 × SFP28 | 2 × SFP28 | 2 × SFP28 |
| Network Mode | Ethernet: 1/10/25GbE | Ethernet: 1/10/25GbE | Ethernet: 1/10/25GbE |
| Host Interface | PCIe 4.0 ×8 | PCIe 3.0 ×8 | PCIe 3.0 ×8 |
| Technology | Ethernet: RoCE | Ethernet: RoCE | Ethernet: RoCE |
| Operating Temperature | 0°C to 55°C | 0°C to 55°C | 0°C to 55°C |
| Storage Temperature | -40°C to 70°C | -40°C to 70°C | -40°C to 70°C |
Resources
FAQ
Ask a QuestionFind answers to common questions about our products.
Does “AC” in MCX621102AC-ADAT mean active cooling?
No. For this OPN, “AC” indicates Crypto and Secure Boot support, not an onboard fan. NVIDIA lists separate active-cooling 25GbE models under MCX621202 series, while MCX621102AC-ADAT is the standard tall-bracket version.
Why choose a ConnectX-6 Dx card for a 25G server connection?
This model is not just a basic 25G NIC. ConnectX-6 Dx adds data-center features such as security offloads, RDMA, virtualization acceleration, and PCIe Gen4 host connectivity, making it better suited for cloud, storage, and secure infrastructure environments.
What does Crypto and Secure Boot support mean for this card?
This AC variant supports both Secure Boot and Crypto. It is suitable for deployments that require trusted firmware behavior and hardware-assisted security features such as IPsec and TLS inline encryption offload.
Can this card be used during a 10G-to-25G server migration?
Yes. NVIDIA lists this adapter for 25/10/1GbE, so it can support staged migration from 10G to 25G.
Is this model a good fit for virtualized servers?
Yes. ConnectX-6 Dx includes virtualization-oriented features such as SR-IOV and overlay offloads for NVGRE and VXLAN, which help reduce host CPU load in cloud and virtualized environments.
Have a question?
Our technical support team is here to help you find the right solution.
Contact Us
Questions & Answers Title
Ask a questionNo reviews yet. Be the first to share your experience with this product.