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Refurbished HP Tandem NonStop Computer Hardware

Specials: Updated October 11, 2011

Castle Systems Inc. specializes in the Sales and Leasing of pre-owned refurbished HP NonStop Tandem computer equipment. We enable companies to capitalize on lower technology costs without sacrificing the quality of NonStop products. Over the past two decades our exceptional service and relentless commitment to the needs of our customers has made Castle Systems a proven industry leader in the Tandem NonStop market.

Whether you are down the road or across the globe, we are ready to handle your hardware needs. With offices in the United States, England, and Australia, we are uniquely positioned to provide services worldwide.