SSD 980 is matched as PM991 but as far as I can tell from research, those are two different products with different product/model codes using the same PCI product id.
nvme0 at pci4 dev 0 function 0 "Samsung PM991 NVMe" rev 0x00: msix, NVMe 1.4 nvme0: Samsung SSD 980 500GB, firmware 1B4QFXO7, serial S64DNX0RC12899Z scsibus3 at nvme0: 2 targets, initiator 0 sd2 at scsibus3 targ 1 lun 0: <NVMe, Samsung SSD 980, 1B4Q> Same for the PRO variant. Feedback? Objection? OK? Index: pcidevs =================================================================== RCS file: /cvs/src/sys/dev/pci/pcidevs,v retrieving revision 1.2001 diff -u -p -r1.2001 pcidevs --- pcidevs 16 Aug 2022 09:28:45 -0000 1.2001 +++ pcidevs 17 Aug 2022 10:25:36 -0000 @@ -8334,8 +8334,8 @@ product SAMSUNG2 SM951_AHCI 0xa801 SM951 product SAMSUNG2 SM951_NVME 0xa802 SM951/PM951 NVMe product SAMSUNG2 SM961_NVME 0xa804 SM961/PM961 NVMe product SAMSUNG2 SM981_NVME 0xa808 SM981/PM981 NVMe -product SAMSUNG2 PM991_NVME 0xa809 PM991 NVMe -product SAMSUNG2 PM9A1_NVME 0xa80a PM9A1 NVMe +product SAMSUNG2 PM991_NVME 0xa809 PM991/980 NVMe +product SAMSUNG2 PM9A1_NVME 0xa80a PM9A1/980PRO NVMe product SAMSUNG2 NVME_171X 0xa820 NVMe product SAMSUNG2 NVME_172X 0xa821 NVMe product SAMSUNG2 NVME_172X_A_B 0xa822 NVMe
