NVIDIA NVLink 3-Slot Bridge for RTX A5000 A6000

I am trying to buy a Nvlink 3-slot bridge I have a ASUS AM4 TUF Gaming X570-Plus and would like

RTXA6000NVLINK3S-KIT A SERIES NVLINK 3S SCB, 3-Slot x16 NVLink Bidge for connecting 2 RTX A6000 PCIe-GPUs

nvlink bridge 4slot NVLink Nvidia Leadtek Quadro RTX HB Bridge 3 Slot RTX8000,RTX6000 Graphics

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