Supermicro SIOM 2-port 25GbE SFP28 Mellanox

Specifications
Ethernet
25GbE / 10GbE / 1GbE
IEEE 802.3ad, 802.1AX Link Aggregation
IEEE 802.1Q, 802.1P VLAN tags and priority
IEEE 1588v2
Jumbo frames support (9.6KB)

Enhanced Features:
Hardware-based reliable transport
Collective operations offloads
Vector collective operations offloads
64/66 encoding
Dynamically Connected transport (DCT)
Enhanced Atomic operations
Support for MSI/MSI-X mechanisms

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

CPU Offload Features:
RDMA over Converged Ethernet (RoCE)
TCP/UDP/IP stateless offload
LSO, LRO, checksum offload
RSS (can be done on encapsulated packet), 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
Multiple queues per virtual machine
VMware NetQueue support

Virtualization:
SR-IOV: Up to 256 Virtual Functions
SR-IOV: Up to 16 Physical Functions per port

Management Features:
Remote boot over iSCSI
PXE and UEFI