ASUS

New/Open Box ASUS M3A78-EM Motherboard AMD AM2+ Micro-ATX Retro

Bottom line: The New/Open Box ASUS M3A78-EM Motherboard AMD AM2+ Micro-ATX Retro is a specs-and-price decision rather than a crowd-consensus one in the retro motherboards category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-09-26

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Before you buy

Confirm socket / form-factor / power-rating compatibility against your build before ordering
Used and vintage listings vary by seller and condition — check the listing photos, description and return terms before buying

Manufacturer description

Up for sale is an Open Box, never-used ASUS M3A78-EM desktop motherboard. The retail box was opened, but the motherboard remains pristine inside its anti-static bag. All original accessories-including the manual, driver disc, red SATA cable, and ASUS Q- Connector blocks -remain completely factory sealed in their original plastic packaging. Perfect for retro PC builds, legacy AMD setups, or home theater PC projects requiring native HDMI/DisplayPort on a Micro-ATX layout. Sold as-is, unused condition.

SpecPicks Verdict

SpecPicks scored New/Open Box ASUS M3A78-EM Motherboard AMD AM2+ Micro-ATX Retro using a rating × review-volume × price-fit model applied to published specs and reviews across the retro motherboards category. ASUS's retro motherboards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for retro motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Full Specifications

socket	AM2+
chipset	AMD 780G
integrated_graphics	Radeon HD 3200
form_factor_physical	Micro-ATX

Ready to buy?

New/Open Box ASUS M3A78-EM Motherboard AMD AM2+ Micro-ATX Retro is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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