Nvidia ConnectX-7 HHHL Adapter Card 200GbE NDR200 Dual-Port
The NVIDIA MCX755106AC-HEAT ConnectX-7 is a half-height, half-length PCIe adapter built for enterprise servers, high-performance computing, AI infrastructure, and data-intensive workloads. Its dual QSFP112 ports support 200GbE Ethernet in default mode and NDR200 InfiniBand, with backward compatibility across 100, 50, 25, and 10GbE Ethernet speeds as well as HDR, HDR100, EDR, FDR, and SDR InfiniBand generations.
A PCIe 5.0 x16 host interface with 32GT/s per-lane signaling keeps the card aligned with current server platforms, while PCIe 4.0 and 3.0 compatibility supports earlier-generation hosts. Cryptographic functionality and secure boot are enabled, and typical power consumption is 25.9W with passive cables in the specified PCIe Gen 5.0 x16 configuration.
Key Features
| Brand | Nvidia |
| Model | MCX755106AC-HEAT |
| Product Type | Network Adapter Card |
| Form Factor | PCIe half-height, half-length (HHHL) |
| Network Connections | Two QSFP112 ports supporting Ethernet and InfiniBand connectivity |
| Default Ethernet Mode | 200GbE |
| InfiniBand Connectivity | NDR200 with support for earlier InfiniBand generations |
| Primary Host Interface | PCI Express 5.0 x16 |
| Additional Interface Option | Auxiliary PCIe x16 Gen 4.0 connection using compatible components |
| Security Capabilities | Cryptographic functionality and secure boot enabled |
| Typical Power Consumption | 25.9W with passive cables in the specified PCIe Gen 5.0 x16 configuration |
| Operating Temperature | 0°C to 55°C |
| Condition | Excellent Refurbished |
| Warranty | 1 year Replacement Warranty |
Highlights
- Dual QSFP112 ports for Ethernet and InfiniBand connectivity
- 200GbE Ethernet in default operating mode
- NDR200 InfiniBand with support for earlier generations
- PCIe 5.0 x16 host interface with PCIe 4.0 and 3.0 compatibility
- Cryptographic functionality and secure boot enabled
- HHHL form factor with tall bracket
Compatibility
Supports Ethernet speeds of 200, 100, 50, 25, and 10Gb/s, and InfiniBand modes NDR200, HDR, HDR100, EDR, FDR, and SDR. The primary host interface is PCI Express 5.0 x16, with PCIe 4.0 and PCIe 3.0 compatibility. An optional auxiliary PCIe x16 Gen 4.0 connection is available using a compatible PCIe passive auxiliary card and two Cabline CA-II Plus harnesses. Cable, transceiver, and switch compatibility should be verified before deployment.
Warranty
Refurbished with 1-year manufacturer's warranty.
What's included
- NVIDIA MCX755106AC-HEAT ConnectX-7 HHHL adapter card
- Tall bracket
Frequently asked questions
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Shipping Information
All orders ship from the Bilikili warehouse at 7571 Randolph Rd NE, Moses Lake, WA 98837.
- Processing time: In-stock orders placed before 1:00 PM PT on a business day usually ship the same or next business day. Large systems (workstations, gaming PCs) may need 1–3 business days for packing and inspection.
- Carriers: We ship with major carriers (UPS, FedEx and USPS). The carrier is chosen for the fastest, safest delivery of your item.
- Tracking: You’ll receive a tracking number by email as soon as your order leaves the warehouse.
- Packaging: Components are shipped in their original retail packaging, with extra protective packing for fragile items.
- High-value orders: Orders over a certain value may require a signature on delivery.
- Where we ship: We currently ship within the United States. Shipping costs are shown at checkout before you pay.
Have a question about your shipment? Email help@bilishop.store with your order number.
Returns & Refunds
We want you to be happy with your hardware. If something isn’t right, you can request a return within 30 days of delivery.
- Items must be returned in their original condition and packaging, with all accessories, manuals and cables.
- To start a return, email help@bilishop.store with your order number and reason. We’ll send you a Return Authorization (RMA) number and instructions.
- Returns without an RMA number may be delayed or refused.
- Once we receive and inspect your return, your refund is issued to the original payment method, usually within 5–7 business days.
- Items that arrive damaged or defective (DOA) — contact us within 48 hours of delivery and we’ll make it right.
- Opened software, items with physical damage, or products missing parts may not be eligible for a full refund.
See our full Refund Policy.
Warranty & RMA
Products sold by Bilikili are covered by the original manufacturer’s warranty. Warranty length varies by brand and product and is listed in the specifications where available.
- Within our return window: If an item is defective within 30 days of delivery, contact us and we’ll arrange a replacement or refund.
- After the return window: Warranty claims are handled directly by the manufacturer (AMD, NVIDIA, ASUS, GIGABYTE, Dell/Alienware, Acer, PNY, etc.). We’re happy to help you find the right support contact and provide your proof of purchase.
- Keep your order confirmation email — it serves as your proof of purchase.
Need help with a warranty claim? Email help@bilishop.store.
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