glotrends PCIe SATA Adapter Card with 12 Port SATA III 6Gbps (Includes SATA Cable and 15PIN SATA Splitter Power Cable), PCIe 3.0 X1 Bandwidth, Compatible with Windows, Linux, Mac OS, NAS (SA3112J):
QM2-2P2G2T | 2 x PCIe Gen3 M.2 NVMe SSD & 2 x 2.5GbE port expansion card to enhance performance | For PC/Server | QNAP (Middle East)
82599 X710 X520 DA2 dual optical port 10G 10 Gigabit fiber network card PCIE nas - AliExpress
Amazon.com: LTERIVER PCIE to 2-Ports Serial ATA/SATA 3.0 Host Controller Card, Plug and Play on Windows OS, MAC OS and Linux Kernel PCs, 2X 6Gbps Max SATA 3.0 None Raid Ports-Support AHCI
SSD NAS WD Red SN700 4TB M.2 2280-D5-M PCIe Gen3 x4 NVMe, Read/Write:
Understanding PCIe Upgrade Cards and NAS - YouTube
PCI Express kontroler Axagon PCEM2-ND PCIe 3.0x8 na Dual M.2 NVMe SSD adapter 30-110mm Standard i Low Profile | Svijet-medija.hr
Adapter Za Pcie майнинга M2 Pci Express X1 4 Porta B Ključ M. 2 Ngff Sata Ssd Adapter Pci-e Adapter Za Proširenje Riser Card Rasprodaja - Pribor i rezervni dijelovi za tablete >
GLOTRENDS PCIe SATA Adapter Card with 4 Port SATA III 6Gbps (Including SATA Cables and 1:5 SATA Splitter Power Cable), Support OS Booting, Compatible with Windows,Linux,Mac OS,NAS - Newegg.ca
Mini-NAS based on the NanoPi M4 and its SATA (PCIe) hat: A cheap, low-power, and low-profile NAS solution for home users (description and tutorial in the comments) : r/MiniPCs