---
title: Sega SG-1000 Mark II
categories:
- Consoles
params:
  name: SG-1000 Mark II
  image: /media/museum/photos/sega_sg1000-ii_1s.jpg
  logo: /media/museum/logos/sega_sg1000-ii_logo.gif
  company: /companies/sega
  company_name: Sega
  tabs:
  - photos
  - hardware
  - emulators
  - links
  - videos
  forum_thread: 1233
  photos:
  - title: SG-1000 MARK II
    subtitle: ''
    text: ''
    image: /media/museum/photos/sega_sg1000-ii_1.jpg
  - title: CONNECTORS
    subtitle: ''
    text: |-
      1 - PAUSE button\
      2 - power LED\
      3 - cartridge slot\
      4 - expansion port\
      5 - Power on/off switch\
      6 - keyboard connector\
      7 - left controller connector\
      8 - right controller connector\
      9 - composite video output\
      10 - RESET button?

      Thanks to [Toughkidcst](http://www.flickr.com/photos/toughkidcst/) for this picture
    image: /media/museum/photos/sega_sg1000-ii_connectors.jpg
  - title: KEYBOARD & CARD CATCHER
    subtitle: ''
    text: Thanks to [Toughkidcst](http://www.flickr.com/photos/toughkidcst/) for this picture
    image: /media/museum/photos/sega_sg1000-ii_keyboard.jpg
  hardware:
  - title: KEYBOARD & CARD CATCHER
    subtitle: ''
    text: Thanks to [Toughkidcst](http://www.flickr.com/photos/toughkidcst/) for this picture
    image: /media/museum/hardware/sega_sg1000-ii_keyboard.jpg
  - title: CONTROLLERS
    subtitle: ''
    text: ''
    image: /media/museum/hardware/sega_sg1000-ii_controllers.jpg
  emulators:
  - title: Dega
    url: http://www.mameworld.net/easyemu/degatut.htm
    platform: Windows
    text: SMS, Mark III and Game Gear emulator
  - title: MEKA
    url: http://www.smspower.org/meka/
    platform: Windows
    text: Multi-system emulator (SG-1000, Mark III, SMS, SC-3000, Game Gear, Colecovision, Othello Multivision)
  - title: Past-O-Rama
    url: http://www.system16.com/pastorama/
    platform: Windows
    text: Sega systems emulator
  links:
  - title: GameFAQs
    url: http://www.gamefaqs.com/console/sms/game/22669.html
    text: Excellent site gathering several Sega Master System FAQs
  - title: IGN.COM
    url: http://codes.ign.com/lists/20137/068/index.html
    text: A LOT of Sega Master System game codes
  - title: MEKA Software Database
    url: http://www.smspower.org/meka/wip/meka.nam
    text: Very precise and useful software database (SMS, GG, Coleco, etc.)
  - title: Official Master System pages from Sega!
    url: http://www.sega.co.jp/archive/segahard/master/
    text: Excellent. Lot of info here (specs, pix, soft lists, ads,etc.)
  - title: Official SG-1000 Mark II pages from Sega!
    url: http://www.sega.co.jp/archive/segahard/sg1000_2/
    text: Excellent. Lot of info here (specs, pix, soft lists, ads,etc.)
  - title: Sega Master System, the console legend
    url: http://www.geocities.com/snappa_fcw/sega.html
    text: SMS dedicated website. A lot of stuff here.
  - title: SMS Power
    url: http://smspower.speedhost.com/
    text: Excellent site supporting all Sega 8-bit systems
  - title: UK Sega Master System page
    url: http://www.severedbbs.u-net.com/fletcher/SMS.html
    text: History, pictures and tech info
  - title: www.alexkidd.com
    url: http://www.alexkidd.com/
    text: FAQs, Game reviews, hardware & peripheral pics and info, ads, links and much more
  - title: www.sega8bit.com
    url: http://www.sega8bit.com/
    text: Featuring a games database, release and rarity information, plus the most active SMS related forums on the web
  videos:
  - title: Japanese Sega SG-1000 Mark II advert
    url: https://www.youtube.com/watch?v=iImQcL5Vs-g
    text: 'Length: 29 seconds'
  - title: Sega Master System TV commercial
    url: https://www.youtube.com/watch?v=S5vreoJLLRM
    text: 'Length: 31s'
  related:
  - /museum/sega-mark-iii
  - /museum/sega-master-system
  - /museum/sega-master-system-ii
  - /museum/sega-master-system-iii
  - /museum/sega-sg-1000
  oc_id: 1266
  source:
    url: https://web.archive.org/web/20230603213909/http://www.old-computers.com/museum/computer.asp?c=1266
    date: '2023-06-03'
---

Very similar to the [SG-1000](/museum/sega-sg-1000/), the SG-1000 Mark II was just a minor update consisting mainly of cosmetic changes.

The case was redesigned and the joysticks of the Mark I were replaced by joypads which could be stored in built-in holders located on either side of the console. There was also built-in port where a keyboard could be attached, effectively turning the console into a computer. However, the Mark II was still outsold by it's computer counterpart, the [SC-3000](/museum/sega-sc-3000-sc-3000h/).

In 1985 the Mark II was replaced by the [Mark III](/museum/sega-mark-iii/), the first version of the [Master System](/museum/sega-master-system/).

<table> <tr> <td></td> <td>We need more info about this console ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.</td> <td></td> </tr> </table>