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https://www.supermicro.com/en/products/accessories/addon/AOC-S100G-m2C.php
• General
  - Mellanox ConnectX®-4 EN dual-port 100Gbps controller
  - Compact size low-profile standard form factor
  - PCI-E 3.0 x16 interface
  - Dual QSFP28 connectors
  - Max power consumption: 16.3W
• Host Interface
  - PCI-E 3.0x16
  - Message Signal Interrupt (MSI-X)
• Networking Features
  - IEEE 802.2bj, 802.3bm 100 Gigabit Ethernet
  - 25G Ethernet Consortium 25, 50 Gigabit Ethernet
  - IEE 802.3ba 40 Gigabit Ethernet
  - IEEE802.3ae 10 Gigabit Ethernet
  - IEEE802.3az Energy Efficient Ethernet
  - IEEE 802.3ap based auto-engotiation 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
• Storage Offloads
  - RAID offload - erasure coding (Reed-Solomon) offload
• 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
• 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 Systems/Distribution
  - RHEL/CentOS
  - Windows
  - FreeBSD
  - VMware
  - OpenFabrics Enterprise Distribution (OFED)
  - OpenFabrics Windows Distribution (WinOF-2)
• Management Features
  - Asset Management features with thermal sensor
  - NC-SI for IPMI Support
• Remote Boot
  - Remote boot over iSCSI
  - PXE and UEFI
• Operating Conditions
  - Operating temperature: 0°C to 55°C (32°F to 131°F)
  - Storage temperature: -40°C to 70°C (-40°F to 158°F)
  - Storage humidity: 90% non-condensing relative humidity at 35°C
• Physical Dimensions
  - Card PCB dimensions: 16.76cm x 6.89cm (6.6in x 2.71in) (LxW)
  - Height of end brackets: standard – 12cm (4.725in), low-profile – 8cm (3.15in)
• Weight
  - 116.12g (0.2560lb)