| Olimex | Interface Modules USB 2-10/100 FAST ETHERNET CONTROLLER | 1.535 | $13.46 | ACTIVE | |
| Olimex | Interface Modules | 1.035 | $36.36 | ACTIVE | |
| Olimex | 1000V ISOLATOR FOR DEV AUDIO DAC | 1.772 | $18.41 | ACTIVE | |
| FTDI Chip | USB-RS422-PCBA is a USB to Serial by FTDI Chip, with RS-422, UART interface, part of the USBmadeEZ-UART series. | 1.807 | $29.34 | ACTIVE | |
| Olimex | Interface Modules | 1.525 | $8.15 | ACTIVE | |
| Olimex | Interface Modules | 1.501 | $129.96 | ACTIVE | |
| Connective Peripherals | USB2-F-1001-A is a USB to Serial by Connective Peripherals with RS-232 interface. | 1.529 | $28.40 | ACTIVE | |
| Connective Peripherals | Interface Modules 1 Port USB RS485 Adapter | 1.523 | $52.06 | ACTIVE | |
| Connective Peripherals | USB2-F-6001 is a USB to Serial by Connective Peripherals with RS-422 interface. | 1.507 | $128.84 | ACTIVE | |
| Connective Peripherals | USB2-F-7101 is a USB to Parallel by Connective Peripherals with FIFO interface. | 1.870 | $281.66 | ACTIVE | |
| Connective Peripherals | Interface Modules Hi-speed USB to 2 pt Serial RS232 Adapter | 1.525 | $65.28 | ACTIVE | |
| Connective Peripherals | Interface Modules HI-SPD USB TO 2-PORT RS232 INDUST ADAPTE | 1.533 | $78.49 | ACTIVE | |
| Connective Peripherals | Interface Modules HI-SPD USB TO 4-PORT RS232 INDUST ADAPTE | 1.523 | $150.24 | ACTIVE | |
| Connective Peripherals | USB2-H-1008-M is a USB to Serial by Connective Peripherals, with RS-232 interface, part of the USB2-H-100X-M series. | 1.511 | $561.18 | ACTIVE | |
| Connective Peripherals | Interface Modules HI-SPD USB TO 16-PRT RS232 US 5V AC PLUG | 2.121 | $1008.96 | ACTIVE | |
| Connective Peripherals | USB2-H-5002 is a Bridge / Converter by Connective Peripherals part of the USB2-H-5002 series. | 1.509 | $106.90 | ACTIVE | |
| Connective Peripherals | Interface Modules HI-SPD USB TO 2-PORT RS485 INDUST ADAPTER | 1.580 | $103.70 | ACTIVE | |
| Connective Peripherals | Interface Modules HI-SPD USB TO 4-PORT RS485 INDUST ADAPTE | 1.531 | $141.94 | ACTIVE | |
| Connective Peripherals | Interface Modules HI-SPD USB TO 8-PORT RS232 US 5V AC PLUG | 1.504 | $524.16 | ACTIVE | |
| Connective Peripherals | USB2-H-5016-M is a USB to Serial by Connective Peripherals with RS-485 interface. | 712 | $969.56 | ACTIVE | |