---
title: "4 Port I/O"
id: 11611
type: "product"
slug: "4-port-i-o"
url: "http://localhost/product/4-port-i-o/"
markdown_url: "http://localhost/product/4-port-i-o.md"
published_at: "2019-11-30T01:21:31+00:00"
modified_at: "2026-03-22T13:20:20+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Kit, plugs into ST-50 buffered motherboard."
category:
  - name: "Interfacing"
    slug: "interfacing"
    taxonomy: "category"
    url: "http://localhost/category/hardware/interfacing/"
post_tag:
  - name: "Sigma Technology"
    slug: "sigma-technology"
    taxonomy: "post_tag"
    url: "http://localhost/tag/sigma-technology/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
genre:
  - name: "Hardware"
    slug: "hardware"
    taxonomy: "genre"
    url: "http://localhost/type/hardware/"
  - name: "Interfacing"
    slug: "interfacing"
    taxonomy: "genre"
    url: "http://localhost/type/interfacing/"
company:
  id: 11279
  title: "Sigma Technology"
  type: "company"
  url: "http://localhost/company/sigma-technology/"
price: 69.95
date: 1983
rarity: "Uncommon"
adverts:
  - publication:
      - id: 34659
        title: "Computers & Electronics (v21 n6)"
        type: "issue"
        url: "http://localhost/issue/computers-electronics-v21-n6/"
    advert_page: "101"
companies_products:
  - id: 11279
    title: "Sigma Technology"
    type: "company"
    url: "http://localhost/company/sigma-technology/"
---

# 4 Port I/O

Kit, plugs into ST-50 buffered motherboard.