MemoryMasters

256MB PC100 Memory Upgrade for Apple Power Mac G4 400/450/500 (Gigabit) 168 pin SDRAM DIMM RAM

Name: 256MB PC100 Memory Upgrade for Apple Power Mac G4 400/450/500 (Gigabit) 168 pin SDRAM DIMM RAM
Brand: MemoryMasters
SKU: B07L455DXK
Price: 14.87 USD
Availability: InStock

Bottom line: The MemoryMasters 256MB PC100 Memory Upgrade is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category, priced around $14.87 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$14.87

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🛒 See live eBay price Also on Amazon — $14.87 Compare to similar memory & ram

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-06

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 →

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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

256MB PC100 168 pin Non-ECC Unbuffered 3.3v SDRAM DIMM. Compatible with: Apple Power Mac G4 400/450/500 (Gigabit). System Specific memory backed by MemoryMasters .

SpecPicks Verdict

SpecPicks scored MemoryMasters 256MB PC100 Memory Upgrade using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. MemoryMasters's memory & ram 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 memory & ram 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.

Key Features

Capacity: 256 MB Memory Upgrade for Apple Power Mac G4 400/450/500 (Gigabit) 168 pin SDRAM DIMM
Versatile Functionality: Increase bandwidth by up to 30-Percent, Reduce power consumption by up to 40-Percent and extend battery life, Faster burst access speeds for improved sequential data throughput
Lifetime Warranty: If for any reason you're not completely satisfied with our RAM Memory, please feel free to contact us we will provide you with our best service possible.
Easy Installation: Designed For Easy Installation And For Maximum Compatibility. Please refer to your system's manual to verify compatibility criteria.
MemoryMasters provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase

Full Specifications

Brand	MemoryMasters
Voltage	3.3 Volts
Capacity	256 MB Memory Upgrade for Apple Power Mac G4 400/450/500 (Gigabit) 168 pin SDRAM DIMM
RAM Size	256 GB
Form Factor	DIMM
Compatibility	Mac
Number of Pins	168
Mfr Part Number	MM-I354B00I0ERFTW
Special Feature	Lightweight
Easy Installation	Designed For Easy Installation And For Maximum Compatibility. Please refer to your system's manual to verify compatibility criteria.
Compatible Devices	Desktop
Data Transfer Rate	256 Megabits Per Second
Additional Features	Lightweight
Computer Memory Size	256 GB
RAM Memory Technology	sdram

Ready to buy?

256MB PC100 Memory Upgrade for Apple Power Mac G4 400/450/500 (Gigabit) 168 pin SDRAM DIMM RAM 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. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

See live eBay listings → Check Amazon listing →

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.