 | Bestek ECC4002 1 Parallel port, WCH CH351L, PCI | 12 | 150.00 | 138.00 |
| Bestek ECC4022 2 Serial port, WCH CH352L, PCI | 12 | 181.00 | 169.00 |
| Bestek ECC4031 1 Serial/1 Parallel port, WCH CH352L, PCI | 12 | 181.00 | 169.00 |
| Bestek ECC4033 2 Serial/1 Parallel port, WCH CH353L, PCI | 12 | 200.00 | 188.00 |
| Bestek ECC4042 4 Serial port, WCH CH352L, PCI | 12 | 338.00 | 325.00 |
| Bestek EPE-9521 2 Serial port, OXPCIe952-FBAG, PCI-Ex1 | 12 | 375.00 | 362.00 |
| Bestek EPE-9522 1 Serial/1 Parallel port, OXPCIe952-FBAG, PCI-Ex1 | 12 | 375.00 | 362.00 |
| Bestek ECC4061 6 Serial port, MCS9845CV, PCI | 12 | 500.00 | 488.00 |
