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White rectangular programmer enclosure with 40-pin ZIF socket, black USB cable, and 42-pin PLCC44 EPROM adapter

GQ

GQ PRG-112 True USB Willem Programmer GQ-4X V4 40pin ZIF + 16-bit EPROM Adapter 42pin PLCC44

SKU CH-TRN2-JVA1J

Universal 40-pin ZIF programmer with 16-bit EPROM adapter supports 27C400, 27C800, 27C160, 27C322, 27C1024, 27C2048, 27C4096, 27C4002, M27C322 and 28F102 devices

  • ColorWhite
  • True USB interface powers and transfers data without an external supply
  • 40-pin ZIF socket automatically handles chips without jumpers or DIP switches
  • 16-bit EPROM adapter with 42-pin PLCC44 footprint expands device support
  • Software version 7.11 or above runs on Windows XP through Windows 11, 32-bit and 64-bit
  • Programming speed increased up to 20 times faster than earlier Willem models

40-pin ZIF universal programmer

The GQ-4X4 is a USB-powered universal programmer built around a 40-pin ZIF socket. It targets engineers, hobbyists and repair technicians who need to read or write a wide range of EPROM, EEPROM and flash devices without juggling multiple adapters.

16-bit EPROM adapter expands support

The bundled 16-bit EPROM adapter adds 42-pin PLCC44 compatibility, covering devices such as 27C160, 27C322, 27C1024, 27C2048 and 27C4096. Without the adapter the 40-pin ZIF socket handles 28F102, 27C400 and 27C800 directly, while larger 16-bit parts remain unsupported.

Lifetime software updates included

Software version 7.11 or above ships with the unit and receives free lifetime upgrades, adding new device definitions and multi-language support. The true USB interface supplies both power and data, so no external AC/DC adapter is required for portable use.

Highlights

  • True USB interface powers and transfers data without an external supply
  • 40-pin ZIF socket automatically handles chips without jumpers or DIP switches
  • 16-bit EPROM adapter with 42-pin PLCC44 footprint expands device support
  • Software version 7.11 or above runs on Windows XP through Windows 11, 32-bit and 64-bit
  • Programming speed increased up to 20 times faster than earlier Willem models

Specifications

ColorWhite

Questions about this item

Will the 40-pin ZIF socket on the GQ-4X4 programmer accept the older 27C400 and 27C800 EPROMs I still use?

Yes, the 40-pin ZIF socket supports those devices directly, and the included 16-bit EPROM adapter adds 42-pin PLCC44 support for parts such as the 27C160, 27C322 and 27C4096.

How can I verify the GQ-4X4 is operating correctly after I connect it?

Launch the GQUSB software version 7.11 or above; it will detect the programmer automatically, show the hardware version GQ-4X4 and let you run a self-test or read a known good chip to confirm operation.

What ships in the box and what must I source separately?

The package contains the GQ-4X4 programmer with 40-pin ZIF socket, one black USB cable for power and data, and one 16-bit EPROM adapter (42-pin PLCC44). No other cables or adapters are included.

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