ProDOS compliant NVRAM SSD Drive 512kB v2.3, Read/Write for Apple II vintage computers by Ralle Palaveev
Bootable. Preloaded with ProDOS, DOS3.3 and old games for test.
When installed boots up instantaneously into ProDOS and a boot menu appears from which 10+ programs and games can be run.
Has dedicated SRAM on board and can be written to without the need for AUX memory - works on computers with as little as 64kB RAM.
This is a hand-built 512 KB NVRAM card for Apple II compatible computers, designed to work as a fast, reliable ProDOS storage device.
The card behaves like a solid-state hard drive, allowing you to store and run ProDOS software without floppy disks.
It is ideal for utilities, diagnostics, programming tools, or compact game collections.
Each card is assembled, programmed, and tested on real hardware.
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Key Features
• 512 KB Non-Volatile RAM
Data is preserved when power is off.
• Fully ProDOS Compatible
Works with ProDOS 2.4.x and standard ProDOS software.
• Fast Access Times
Much faster than floppy drives.
• Built-in Boot Loader
Can boot directly into ProDOS on power-up.
• 256 Banks × 2 KB
Efficient bank-switched design mapped into the Apple II address space.
• No Moving Parts
Silent, instant, and reliable.
• Recommended Slot: 7
(Works in other slots as well.)
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System Requirements
• Apple II , Apple IIe and Apple IIgs or compatible system
• 64 KB RAM minimum
• ProDOS-capable system
⚠️ Apple IIgs:
Compatibility testing on Apple IIgs ROM 1 only I’m not sure about the other ROM versions
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Included Software (Preinstalled)
Depending on the selected option, the card may include:
• ProDOS
• BASIC.SYSTEM
• BITSY.BOOT
• DOS 3.3.SYSTEM
• Copy II Plus
• Merlin Assembler
• ADTPro
• No Slot Clock driver
. GAMES
(Exact contents can be confirmed before shipping.)
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Condition
• Brand new PCB
• Newly assembled components
• Fully tested
• Clean and ready to use
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Important Notes
• This is a retro hobbyist product, not an original Apple card.
• Intended for enthusiasts, collectors, and retro users.
• Support and documentation will be provided in PDF format.
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Why This Card?
If you are tired of swapping floppy disks and want a simple, fast, and elegant storage solution for your Apple II, this NVRAM card is a perfect upgrade.
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Shipping & Support
• Secure packaging
• Shipped from Europe
• PDF user guide included
• Friendly post-sale support for setup questions
The card should be properly installed while observing the "Keyboard" arrow. Any failure to do so will result in damage to the computer and the card.
