General: Mellanox Connect- 4 Lx EN dual-port 25Gbps controller Compact size low-profile standard form factor PCI-E 3.0 x8 (8GT/s, 5GT/s or 2.5GT/s) interface Dual SFP28 connectors Typical power consumption: 8.7W

	Host Interface: PCI-E 3.0 x8 Message Signal Interrupt (MSI-X)

Networking Features: 25G Ethernet Consortium 25 Gigabit Ethernet IEEE802.3ae 10 Gigabit Ethernet IEEE802.3az Energy Efficient Ethernet IEEE 802.3ap based auto-negotiation and KR startup IEEE 802.ad, 802.1AX Link Aggregation IEEE 802.1Q, 802.1p VLAN tags and priority IEEE802.1Qau (QCN) Congestion Notification IEEE 802.1Qaz (ETS) IEEE 802.1Qbb (PFC) IEEE 802.1Qbg IEEE 1588v2 Jumbo frame support (9.6KB)

	CPU Offload Features: RDMA over Converged Ethernet (RoCE) TCP/UDP/IP stateless offload LSO, LRO, checksum offload RSS, TSS, HDS, VLAN insertion/stripping. Receive flow steering Intelligent interrupt coalescence

	Overlay Networks: Stateless offloads for overlay networks and tunneling protocols Hardware offload of encapsulation and decapsulation of NVGRE and VXLAN overlay networks

	Hardware-Based I/O Virtualization: Single Root IOV Multi-function per port Address translation and protection Multiple queues per virtual machine Enhanced QoS for vNICs VMware NetQueue support

	Storage Offloads: RAID offload erasure coding (Reed-Solomon) offload

	Management Features: Asset Management features with thermal sensor NC-SI for IPMI Support

	Virtualization Features: SR-IOV: up to 256 Virtual Functions SR-IOV: up to 16 Physical Functions per port 1K ingress and egress QoS levels Guaranteed QoS for VMs

	Operating System Support: RHEL/CentOS Windows FreeBSD VMware OpenFabrics Enterprise Distribution (OFED) OpenFabrics Windows Distribution (WinOF-2)

	Remote Boot: Remote boot over iSCSi PXE and UEFI

	Operating Conditions: Operating temperature: 0 oC to 55 oC (32 oF to 131 oF) Storage temperature: -40 oC to 70 oC (-40 oF to 158 oF) Storage humidity: 90% non-condensing relative humidity at 35 oC

	Supported Platforms: Motherboards with minimum PCI-E 3.0 x8 expansion slot Server Systems with low-profile or full-height PCI-E 3.0 x8 expansion slot NC-SI feature is only supported by Supermicro motherboards with corresponding NC-SI connectors

	Item Dimension (L inchxW inchxH inch) NA

	Weight 1.0lb

	Warranty Information 1 Year