You've got a ThinkSystem SR630 V2 or SR645 humming along, and you need to slot in an extra NIC, GPU, or HBA — but the riser position isn't set up for the card profile you're running. This is the OEM Riser 1 option kit that fixes that. PCIe Gen4, x16/x16 split, one Low Profile slot and one Full Height slot. Drop it in, seat your cards, power up. No adapter hunting, no third-party fitment guesswork. If your server's already on the bench waiting for that extra lane, this is the part that gets you back online before the next SLA window closes. Add to cart and we'll get it moving