4-Slot Pure PCI Backplane with 4xPCI and RoHS Support
PCI-14S PICMG 1.0 Full Size Passive Backplane with four PCI and nine ISA Slots | Industrial PC Pro
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.
Amazon.com: 2 Port Serial DB9 RS232 PCI-e 1.0 x1 with Low Bracket SI-PEX15055 : Electronics
PCI Express - Wikipedia
PCIe Parallel Expansion Card PCI Express 1.0 x1 to 1 Port Industrial DB25 25 pin Converter Adapter Controller for Desktop PC - AliExpress
Sealevel Releases PCI Serial Adapter with 1.0 Mbps Data Rate - Sealevel
VDX3-PCI PICMG 1.0 Half-sized PCI - EMAC inc.
The Primer: PCI Express 1.0 vs. 2.0 - 6Gbps SATA Performance: AMD 890GX vs. Intel X58/P55