---
title: "Internal 16K RAM Expansion"
id: 12932
type: "product"
slug: "internal-16k-ram-expansion"
url: "http://localhost/product/internal-16k-ram-expansion/"
markdown_url: "http://localhost/product/internal-16k-ram-expansion.md"
published_at: "2019-11-30T01:17:25+00:00"
modified_at: "2026-03-22T13:20:42+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "PC board and instructions. Instructions, $7.95."
category:
  - name: "RAM"
    slug: "ram"
    taxonomy: "category"
    url: "http://localhost/category/hardware/ram/"
post_tag:
  - name: "Independence Research"
    slug: "independence-research"
    taxonomy: "post_tag"
    url: "http://localhost/tag/independence-research/"
  - name: "ZX81"
    slug: "zx81"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx81/"
model:
  - name: "Sinclair ZX81"
    slug: "zx81"
    taxonomy: "model"
    url: "http://localhost/model/zx81/"
genre:
  - name: "Hardware"
    slug: "hardware"
    taxonomy: "genre"
    url: "http://localhost/type/hardware/"
  - name: "RAM"
    slug: "ram"
    taxonomy: "genre"
    url: "http://localhost/type/ram/"
company:
  id: 10948
  title: "Independence Research"
  type: "company"
  url: "http://localhost/company/independence-research/"
price: 18.95
date: 1982
rarity: "Uncommon"
producturl: "https://archive.org/details/syncmagazine-v2_n4/page/n81"
companies_products:
  - id: 10948
    title: "Independence Research"
    type: "company"
    url: "http://localhost/company/independence-research/"
---

# Internal 16K RAM Expansion

PC board and instructions. Instructions, $7.95.