USB Adapter
USB to Parallel Adapters
USB to parallel adapters connect modern USB hosts to legacy printers and other equipment that use parallel interfaces.
Related: USB to Serial · USB to PS/2 · USB-A to USB-C
Characteristics
| Typical USB input | USB-A |
|---|---|
| Typical parallel connector | DB25 or printer-oriented IEEE 1284 connector, depending on the adapter |
| Adapter type | Active USB-to-parallel bridge |
| Typical use | Legacy parallel printers and selected peripheral equipment |
| Transparent LPT emulation | Not guaranteed; many adapters support printing but not software or hardware that requires direct legacy parallel-port access |
| Driver requirements | Depend on the adapter chipset and operating system |
| Compatibility check | Verify connector type and whether the target device requires true legacy parallel-port behavior |
