PCIe Parallel Expansion Card PCI Express 1.0 x1 to 1 Port Industrial DB25 25 pin Converter Adapter Controller for Desktop PC - AliExpress
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Adapter Card - PCIe to ESATA IDE PCB Network Converter - Computer Hardware with Driver CD - with PCI-Express 1.0 a Standard - Tech Carbasa
HPE 412648-B21 1Gbps Dual Port PCIe-1.0a Network Adapter for G4-G7, Wholesale 412648-B21, Price 412648-B21
PCIe 1.0 or PCIe 2.0? | TechPowerUp Forums
Amazon.com: REDLUX PCIe 3.0 to NVMe (4) M.2 Adapter for M.2 (M Key) SSD, X16,Compatible with PCIe 3.0 Motherboards and Backward Compatible with PCIe 2.0 and PCIe 1.0 : Electronics
SHINESTAR PCIe Serial Expansion Card, 2 Port PCI Express 1.0 x 1 to Industrial DB9 COM RS232 Converter Adapter Controller for Desktop PC with Low Bracket - NWCA Inc.