What PCIe interface and onboard memory does this card have?

It uses a PCIe Gen 5.0 x16 interface and has 16GB of onboard DDR5 memory.

What Ethernet data rates does the BlueField-3 B3140H support?

It supports Ethernet speeds of 400, 200, 100, 50, 25, and 10 Gb/s, with 400 GbE as the default.

Questions & Answers: NVIDIA BlueField-3 E B3140H 400Gigabit Ethernet Card - PCI Express 5.0 x16 - 400 Gbit/s Data Transfer Rate - Optical Fiber - HHHL Bracket Height - QSFP112 - Plug-in Card

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Item#: 0XP-00VH-000A9
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NVIDIA BlueField-3 E B3140H 400Gigabit Ethernet Card - PCI Express 5.0 x16 - 400 Gbit/s Data Transfer Rate - Optical Fiber - HHHL Bracket Height - QSFP112 - Plug-in Card | 900-9D3D4-00EN-HA0

InfiniBand: NDR 400Gb/s
Ethernet: 400GbE (Default)
Port: 1-Port QSFP112
Support: PCIe Gen 5.0 x16
On-Board DDR5 Memory: 16GB

$4,719^.00 –