Mini Pc Serial Port PCI TO R232 Adapter PCIE To 2 Port Serial Expansion Card PCI-E To Industrial RS2 Series S Expansion Card PCIE 2 Port Serial Expansion Card PCI Express to Industrial DB9 Serial... The measurement allowed error is +/- 1-3cm. GZSHUNLI Install the PCI TO R232 expansion card on the computer 1. Turn off the computer and devices connected to the computer. 2. Open the case cover, insert the card into the unused PCI slot, and fix it. 3. Close the case cover and connect the leads of the PCI to R232 expansion card. 4. Start the computer, and the driver will be installed . Matters needing attention: 1. When the PCI TO R232 expansion card is in the PC self-test, the system will prompt that there is a device. 2. Each PCI TO R232 expansion card occupies an interrupt, which is automatically assigned by the system. ANDTONICS PCI Expess Seial Cad - 2 x S232 (DB9) Seial Material: PCB colour: black Package Contents: 1 x RS232 Expansion Card 1 x CD driver Only the above package content, other products are not included. Large Shank Trombone Mouthpiece with Gold-plated 51 Cup Medium Depth 25.23mm Inner Diameter and 6.72mm Throat