System Add-ons and Upgrades

Get More for Your DEC System Add-Ons and System Upgrades
Don’t hold on to your used DEC system upgrades when overhauling your office systems, get fast cash instead with TC Digital. We offer the industry’s highest payouts, with instant payment and free shipping! There’s no need for your excess hardware to collect dust – contact Twin Cities Digital today.

Shop Refurbished DEC System Upgrades
For the most extensive selection of used and refurbished DEC system add ons and upgrades, look no further than Twin Cities Digital. Our inventory provides your business with the augmentation solutions you need to increase your network and data capacity to get the job done. With most products shipping same-day, and all products covered by a 1-year warranty, you’ll find the system add-ons you need now, for less!

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What Makes Twin Cities Digital the Best

  • Top Payout

  • Same Day Shipping

  • 5 Star Customer Service

  • 1 Year Warranty


  • “We sold Twin Cities Digital all of the equipment from our Tech Center last year when we upgraded. They set up all of the shipping, had it all audited and paid very fast. They made the whole process very simple. If I have more equipment to sell in the future, they will be my first call.”

    Mike | San Jose, CA

  • “I’ve been working with Dave at TCD on many projects. Their equipment always looks great, is complete and on time. Great company, I will definitely use them again.”

    Jim | Grand Forks, ND

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