Product Description
64KB Expansion RAM Card for Apple IIe (AUX Slot) – 64K IMP-RAM Card
This is a 64KB expansion RAM card designed for installation in the AUX slot of the Apple IIe.
It expands a standard Apple IIe (with 64KB onboard RAM) to a total of 128KB, enabling the use of software that requires expanded memory.
 
While the Apple IIe is widely available on the used market compared to other Apple II models, genuine RAM expansion cards are much harder to find. Many used systems are equipped only with 80-column cards that lack RAM functionality. For this reason, we redesigned this expansion card.
Although higher-capacity RAM cards (4MB, 8MB, etc.) are available from other manufacturers, very few programs actually require more than 128KB—aside from RAMWorks and certain DTP software. Therefore, this card is designed around the concept of providing only what is truly necessary. It eliminates unnecessary features, offering low power consumption and excellent cost performance.
 
■ Features
Compatible with Apple IIe AUX slot
64KB expansion RAM (128KB total with onboard memory)
Practical, simple design focused on reliability and low power consumption
Made in Japan
LED indicator lights during 80-column access (activity indicator)
 
■ Compatible Models
Compatible with Apple IIe models equipped with an AUX slot:
Non-Enhanced
Enhanced
Platinum (including Euro version)
*When used with Rev. A boards, the rear X1 jumper must be cut.
 
■ Recommended Testing Procedure (for users)
① Diagnostic Software Check
Using XPS Diagnostics IIe, you can:
Confirm expansion card recognition
Perform expanded memory error checks
② Functional Test with 128KB Software
We recommend testing with software that requires 128KB.
Example:
Prince of Persia
If the game runs and is playable, the expansion RAM is functioning correctly.
 
■ About the LED
Lights only during 80-column access
Remains off during normal operation
The LED functions as an activity (ACT) indicator and is not designed to stay on continuously
 
Important Notes
Installation is at your own risk.
Operation cannot be guaranteed on units with deteriorated components.
 
This newly designed expansion card provides a practical way to upgrade your Apple IIe to a functional 128KB configuration. We hope you will give it a try!