Working Pull. Guaranteed to work in a compatible system
Ships within 24 hours in an anti-static bag and sturdy box.

Technical Specifications
• Component Chips: The board is populated with 8 LG Semicon (LGS) chips bearing the part number GM71C17400CT6.
• Memory Type: These are 4M x 4-bit Fast Page Mode (FPM) CMOS Dynamic RAM (DRAM) chips operating at 5V.
• Module Capacity: Since there are 8 chips and each chip represents 2 Megabytes (4M x 4 bits = 16 Megabits), the current configuration provides 16 Megabytes (16 MB) of total capacity per module.
• Expansion Capabilities: The back of the PCB features unpopulated pads for 8 additional "4MX4" chips (labeled U9 through U16). If fully populated, this physical board design supports a maximum capacity of 32 MB.
• Manufacture Date: The date code on the chips is 9916, indicating they were manufactured during the 16th week of 1999 (late April 1999).
Machine Compatibility & Form Factor

The highly distinct physical layout—featuring deep structural notches on the upper corners, a custom edge connector, and specific alignment holes—points to a proprietary, application-specific form factor rather than a standard desktop PC SIMM/DIMM slot.

During the late 1990s, this specific class of 5V FPM DRAM modules on custom notched boards was exclusively installed in:

For use in: High-End Network Equipment, Enterprise Laser Printers, and or Specialized Industrial/Telecom Systems