Commodore A501

Commodore A501 is a memory expansion module designed for the Amiga 500 computer. This module adds 512 KB of RAM and includes a battery-backed real-time clock (RTC), allowing the system to keep track of time even when powered off.

Key Features:

• Memory Expansion: Adds 512 KB of RAM to the Amiga 500’s built-in 512 KB, effectively doubling the total memory to 1 MB. This additional memory is essential for many games and applications that require more than the base 512 KB RAM.

• Real-Time Clock (RTC): Built-in clock with battery backup, allowing the system to retain the correct time and date even when powered off.

• Installation: The module is installed in the trapdoor expansion slot located on the bottom of the Amiga 500. Installation is simple and requires no special tools—just open the slot cover and insert the module.

Important Note:

Many of these modules contain Ni-Cd rechargeable batteries for the RTC, which can leak over time and damage the circuit board. It is recommended to regularly check the battery and replace or remove it if necessary to prevent damage caused by electrolyte leakage.

Non-functional, some components disconnected and apparently damaged by a leaking battery.