The **SpeedPrint** by British firm Cirtech is an advanced printer interface for the PCW implementing a standard Centronics parallel port. Unlike conventional print adapters, this device was specifically engineered to optimize system performance during intensive print operations, almost instantly freeing up computer memory by offloading data queues to an onboard hardware storage buffer.

The system architecture of the **Cirtech SpeedPrint** stands out for resolving one of the Amstrad PCW’s most notable system bottlenecks: the mandatory wait time while the native dot-matrix printer or an external Centronics device processed text documents or heavy graphic layouts under Locoscript or CP/M.

Physically, the device comprises a compact white enclosure module equipped with an edge connector mating with the rear system expansion bus and a standard 36-pin Centronics output connector. Internally, its layout pairs logic IC chips alongside dedicated memory hardware configured to capture data queues from the machine. The resident software background driver supplied by Cirtech channels mass document streams straight into the expansion buffer at the maximum transfer speed permitted by the Z80 CPU, granting immediate keyboard layout access back to the operator for continuing text editing or executing unrelated office tasks while the spooling sequence empties autonomously in the background.