The AORUS XTREME Gen4 NVMe SSD add-in card is probably longer than most high-end GPUs on the market and certainly rivals them in price. It comes with up to eight 4 TB second gen PCIe 4.0 NVMe SSDs powered by the Phison PS5018-E18 controller and the RAID configuration yields ultra-fast transfer speeds of up to 28 GB/s.
https://www.notebookcheck.net/Gigabyte-launches-AORUS-XTREME-Gen4-SSD-add-in-card-with-up-to-32-TB-capacity-and-28-GB-s-read-speeds.548529.0.html