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NVIDIA ConnectX-8 C8240 half-height half-length network card with dual QSFP112 ports

NVIDIA

NVIDIA ConnectX-8 C8240 network card 900-9X81Q-00CN-ST0

SKU CH-G0GM-6S9M6 MPN 900-9X81Q-00CN-ST0

Dual-port QSFP112 network interface card delivering 400 GbE and NDR InfiniBand over PCIe 6 x16 in a half-height half-length form factor

  • Rated speedInfiniBand: NDR IB Ethernet: 400GbE (Default)
  • Connection typesPort Type: Dual-port QSFP112
  • Key featuresForm Factor: Half-Height, Half-Length (HHHL) PCie Express: P
  • Dual-port QSFP112 connectivity enables 400GbE and NDR InfiniBand speeds
  • PCIe 6 x16 interface delivers high-throughput data transfer for demanding workloads
  • Half-height half-length form factor fits dense server chassis without sacrificing performance
  • Crypto acceleration offloads encryption tasks to boost network efficiency
  • NVIDIA ConnectX-8 architecture provides advanced networking capabilities for AI and HPC clusters

NVIDIA ConnectX-8 C8240 SuperNIC

The NVIDIA ConnectX-8 C8240 is a half-height half-length network interface card designed for high-performance computing and data-centre fabrics. It delivers dual-port connectivity at 400GbE or NDR InfiniBand speeds through a PCIe 6 x16 interface.

Suited for dual-port 400GbE

This card fits builders who need two QSFP112 ports running at 400GbE or NDR InfiniBand in a compact HHHL slot. It is not for buyers who require a single-port design, a different connector type, or a lower-speed link.

PCIe 6 x16 with optional x16 SocketDirect extension

The card uses a PCIe 6 x16 edge connector and offers an optional x16 PCIe SocketDirect extension for specialised topologies. Verify that your platform provides a PCIe 6 x16 slot and the physical clearance for the extension before purchase.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $1,954.99
Pricier than about 92% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameNVIDIA
Model nameC8240
Part number900-9 × 81Q-00CN-ST0
Performance
Rated speedInfiniBand: NDR IB
Ethernet: 400GbE (Default)
Ports & slots
Connection typesPort Type: Dual-port QSFP112
Size & build
Shipping weight0.40 kg
Package size168 × 66 × 66 mm

Questions about this item

Will the QSFP112 transceivers need periodic replacement?

The card uses dual-port QSFP112 cages; transceivers are hot-pluggable modules you replace only if a link fails or you change media type.

What limits sustained throughput on the PCIe 6 x16 host link?

The x16 lane width at PCIe 6 speed sets the host-bus ceiling for the dual 400GbE ports.

How much heat does the HHHL card produce under continuous load?

The half-height half-length form factor relies on server chassis airflow; no onboard fan is fitted.

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