4
2. Package Contents
• 1x PCIe x8 Mellanox Connectx-4 Dual-Port 25G SFP+ adapter
• 1x User’s Manual
• 1x CD Driver
• 1x Low profile bracket
3. Specification
• Compliant with PCI Express Specification Revision 3.0,1.1 and
2.0,2.5, 5.0, or 8.0GT/s link rate x8
• Auto-negotiates to x8, x4, x2, or x1
• Support for MSI/MSI-X mechanism
• Supports dual-Port 25G,10G, or 1Gb/s SFP+
• IEEE802.3by,25G supporting all FEC modes, IEEE802.3az
Energy Efficient Ethernet, IEEE802.3ap based auto-negotiation
and KR startup.
• Support Standards IEEE802.3ad, IEEE802.1ax, IEEE802.1Q,
IEEE802.1P, IEEE802.1Qaz, IEEE802.1Qbb, IEEE802.1Qbg,
IEEE1588V2
• Jumbo frame support 9.6KB
• Independent NC-SI SMBus interface
• Independent stand-by and wake-on-Lan signals
• Collective operation offloads
• PeerDirect RDMA (aka GPUDirect communication acceleration)
• 64/66 encoding
• Extended Reliable connected transport
• Dynamically connected transport
• RDMA over Converged Ethernet (RoCE)
• TCP/UDP/IP stateless offload
• LSO.LRO. checksum offload
• Hardware offload of encapsulation and decapsulation of NVGRE
and VXLAN overlay networks.
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