MiSTer FPGA SDRAM board: the memory that unlocks 16-bit, arcade and CD-ROM cores

The Terasic DE10-Nano board on its own isn't enough to run the whole MiSTer FPGA catalogue. Its built-in memory is attached to the ARM side, not to the logic fabric: most cores require SDRAM connected directly to the FPGA. This RetroScaler module adds that memory on the GPIO header, in 32 MB (v2.2) or 128 MB (v3.0).

What it does

• Unlocks the cores that require SDRAM: without this module, a large share of 16-bit, arcade and CD-ROM cores simply refuse to start.
• Two capacities to choose from: 32 MB (v2.2) covers the vast majority of cores; 128 MB (v3.0) targets the most memory-hungry cores.
• Extra-slim format: about 5.1 × 2.35 × 0.8 cm, designed to fit under the flattest MiSTer cases.
• No soldering iron needed: the board is assembled and soldered at the factory, and plugs into the GPIO header.

What it doesn't do

• It isn't a complete MiSTer: the DE10-Nano board, case, power supply and microSD card are not included.
• It provides no cores, no firmware and no games. The MiSTer is set up separately, and is used without games, in compliance with the law.
• It doesn't speed anything up: a core that already works gains neither picture quality nor smoothness once the SDRAM is added.
• The 32 MB version doesn't cover cores that explicitly require 128 MB — check the page for the core you want before choosing the variant.
• It doesn't plug into any original console: it's an expansion for the DE10-Nano, not memory for a PC or a console.

Compatibility

Terasic DE10-Nano board used as a MiSTer FPGA, via its GPIO header. Not compatible with other development boards, original consoles or PCs. If your MiSTer case is a very tight fit, measure the available height before ordering: the module sticks up about 8 mm above the header.

Skill level required

No soldering, no console disassembly. The module comes ready to use: it plugs into the DE10-Nano's GPIO header, with the board powered off, respecting the orientation and alignment of the pins. A misaligned pin can damage both the module and the main board: take the time to check the alignment before powering back on.

In the box

• 1 RetroScaler SDRAM expansion board, 32 MB (v2.2) or 128 MB (v3.0) depending on the chosen variant.
• No DE10-Nano board, case, standoffs, microSD card or power supply.

Read before ordering: Retro Peripherals

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