ExpressCard to Parallel Printer (IEEE 1284) Host Adapter Home
Most modern notebooks don't include IEEE-1284 Parallel (known as LPT in Windows). However, this venerable connection technology is still in demand. For newer notebooks with ExpressCard 34|54 slots, Synchrotech's ExpressCard Parallel Adapters provide the missing functionality.
USB Based IEEE 1284 Parallel ExpressCards
Unlike some inexpensive USB to IEEE-1284 EPP Parallel adapters, the host adapters provide robust support, and work with many Parallel Port applications. These ExpressCard to Parallel adapters are less exprensive than PCIe based ExpressCards, but when 100% IEEE-1284 EPP Parallel compatibility is required, see IEEE-1284 EPP Parallel ExpressCards
- ExpressCard Parallel 1 Port
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- EXP34-IEEE1284-01
- ExpressCard 34 to Parallel Printer (IEEE 1284) DB25 Host Adapter 1 Port C-370
- Single port Parallel Printer (IEEE 1284)
PCIe Based IEEE 1284 Parallel ExpressCards
Advantages of a PCIe-based ExpressCard design are in the interface to the laptop's motherboard. The PCIe bus interface is the successor to the PCI bus, which in turn was the successor to the ISA bus to which built-in IEEE-1284 EPP Parallel ports were originally attached. As such, the ExpressCard adapter design utilizes a PCIe-based design and can still directly use I/O space addresses and interrupts, thus more closely emulating built-in ports than can be done via USB-based design. Moreover, because there's no USB stack for the drivers to contend with, throughput can be higher and latency will be lower (considerably so in many cases). Due to improved data transfer rate, the ExpressCard is considerably more efficient for multi-tasking operations.
- PCIe ExpressCard Parallel 1 Port
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- EXP34-SPPXP-100
- Quatech 1 Port Performance PCIe based IEEE-1284 EPP Parallel ExpressCard
- Single port Parallel Printer (IEEE 1284) PCIe based for highest performance and compatibility
