Is the ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) worth buying?

ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) averages, so buyer feedback is well-established. Read recent reviews on Amazon to see how it holds up for use cases similar to yours.

What are the alternatives to the ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC)?

ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) competes with other Memory & RAM products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Memory & RAM category for alternatives.

Who makes the ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC)?

ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) is manufactured by AddOn. See all AddOn products on SpecPicks via the brand page.

How is the ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) shipped and returned?

ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) is sold through Amazon. Amazon Prime members generally receive free 1-2 day shipping; non-Prime orders are subject to Amazon's standard shipping rates. Full returns policy applies per Amazon Associate terms.

AddOn

ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC)

Name: ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC)
Brand: AddOn
SKU: B0000510CF
Price: 24.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-13

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$24.99

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🛒 See live eBay price Also on Amazon — View Current Price → Compare to similar memory & ram

*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.

Bottom line: The ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category, priced around $24.99. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

AO16C3264-PC133 is an INDUSTRY STANDARD 256MB SDRAM 133MHz/PC133 DIMM memory module for Desktops. This memory module is built to JEDEC Standards. All Add-on memory products are 100% tested and 100% guaranteed to be compatible with the systems it is intended for.

SpecPicks Verdict

SpecPicks scored ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the memory & ram category. AddOn'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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ 256MB PC-133MHZ UDIMM
✓ Backed by AddOn's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

256MB PC-133MHZ UDIMM
DR COMPUTER MEMORY

Full Specifications

Brand	AddOn
Voltage	3.3 Volts
RAM Size	0.25 GB
Model Name	MEMORY UPGRADES
Unit Count	1.0 Count
Form Factor	Desktop
Memory Speed	133 MHz
Model Number	AO16C3264-PC133
Compatibility	PC, Mac
Number of Pins	168
Mfr Part Number	AO16C3264-PC133
Compatible Devices	Desktop
Data Transfer Rate	133 MHz
Memory Form Factor	DIMM
Additional Features	Lightweight
Computer Memory Size	0.25 GB
Warranty Description	Limited lifetime warranty
RAM Memory Technology	SDRAM PC133
Global Trade Identification Number	00662919006391

Ready to buy?

ACP-EP Memory 256MB PC133 168-PIN SDRAM DIMM (MAC and PC) is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. 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.

See live eBay listings →

*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.