Peripheral Expansion Box TI-99

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Sale Date TW Title Price
2025-05-26
RETRO Texas Instruments TI-99/4 Peripheral Expansion System Box PowersOn 4 Cards [eBay] $232.89 Report It
2025-05-18
Texas Instruments TI-99/4 Peripheral Expansion System Box Powers On 3 Cards [eBay] $324.72 Report It
2025-05-03
Texas Instruments TI-99/4 Peripheral Expansion System 3 Cards - Powers On [eBay] $419.99 Report It
2025-04-07
Texas Instruments TI-99/4 Peripheral Expansion System 4 Cards - Powers On AS IS [eBay] $499.99 Report It

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Peripheral Expansion Box (TI-99) Details

Genre: Accessories
Release Date:
ESRB Rating: none
Publisher: Texas Instruments
Developer:
Model Number: #PHP1200
Player Count: 1 player
Notes: none
  
UPC: none
ASIN (Amazon): none
ePID (eBay): none
PriceCharting ID: 9569130
   
Description: The TI-99/4A can be upgraded via expansion cards added to an eight-slot, external chassis containing its own linear power supply and a full-height 5¼" floppy bay.[10] Encased in silver plastic, but made from sheet steel, this is labeled as the Peripheral Expansion System by TI, but usually called the Peripheral Expansion Box or PEB. Each card has an LED that blinks or flickers when being accessed by software. The section of the power supply that powers the card slots is unregulated. Each card has on-board regulators for its own requirements, which reduces power consumption on a partially-loaded PEB and allows for cards with unusual voltage requirements.

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Peripheral Expansion Box (TI-99 | Video Games) prices are based on the historic sales. The prices shown are calculated using our proprietary algorithm.
Historic sales data are completed sales with a buyer and a seller agreeing on a price. We do not factor unsold items into our prices.
Chart shows the price of Peripheral Expansion Box at the end of each month going back as long as we have tracked the item.

Peripheral Expansion Box TI-99

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