https://www.intel.com/content/www/us/en/products/sku/81801/1u-hotswap-backplane-upgrade-kit-with-4x-nvme-ssd-support-a1u44x25nvmedk/compatible.html
1U Hot-swap Backplane Upgrade Kit with 4x NVMe SSD Support A1U44X25NVMEDK
1U Hot-swap Backplane Upgrade Kit with 4x NVMe SSD Support A1U44X25NVMEDK - Compatible products.
hot swapupgrade kit