Mellanox MCX516A-CDAT ConnectX-5 100GbE CX516A Dual Port QSFP28 NICComes with both tall & low profile brackets.
Manufactured 10/20/2022.See the below output indicating that the card is being recognized.
[root@testcentos ~]# lshw -class network *-network:0 description: Ethernet interface product: MT28800 Family [ConnectX-5 Ex] vendor: Mellanox Technologies physical id: 0 bus info: pci@0000:07:00.0 logical name: ens2f0 version: 00 serial: b8:3f:d2:92:b0:ca width: 64 bits clock: 33MHz capabilities: pciexpress vpd msix pm bus_master cap_list rom ethernet physical fibre autonegotiation configuration: autonegotiation=on broadcast=yes driver=mlx5_core driverversion=4.9-5.1.0 firmware=16.35.2000 (MT_0000000013) latency=0 link=no multicast=yes port=fibre resources: irq:43 memory:f2000000-f3ffffff memory:e7000000-e70fffff *-network:1 description: Ethernet interface product: MT28800 Family [ConnectX-5 Ex] vendor: Mellanox Technologies physical id: 0.1 bus info: pci@0000:07:00.1 logical name: ens2f1 version: 00 serial: b8:3f:d2:92:b0:cb width: 64 bits clock: 33MHz capabilities: pciexpress vpd msix pm bus_master cap_list rom ethernet physical fibre autonegotiation configuration: autonegotiation=on broadcast=yes driver=mlx5_core driverversion=4.9-5.1.0 firmware=16.35.2000 (MT_0000000013) latency=0 link=no multicast=yes port=fibre resources: irq:69 memory:f0000000-f1ffffff memory:e7100000-e71fffff