https://www.techpowerup.com/242378/g...-m-2-slot-card

GIGABYTE today rolled out the CMT2014, an add-on card that converts a PCI-Express gen 3.0 x16 slot into four 32 Gbps M.2 PCIe slots, using PCIe lane-segmentation on the motherboard's end (it doesn't have any bridge chip on its end). This is similar in function, concept, and design to the ASRock Ultra Quad M.2, and the ASUS Hyper M.2, but lacks any mechanism to cool the drives. You get four M.2-22110 slots with PCI-Express gen 3.0 x4 wiring, two of these slots face forwards, and the others backwards.

If you have M.2-2280 (or smaller) drives installed on the slots that face backwards, you can physically (and irreversibly) break off a piece of the card to reduce its length from 21 cm to around 18.5 cm. Other features include power/activity LEDs for each of the four slots, and temperature sensors positioned where most SSDs have their controllers located. The company didn't reveal pricing, but to prevent RMAs from people who can't get it to work on their motherboards lacking lane segmentation, it mentioned that the card is only intended for Xeon "Purley" platform, for now.