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Rare circa-1990 Dakota Microsystems PowerSave 500 internal uninterruptible power supply and automatic data-protection system for vintage MS-DOS-compatible PCs.This remarkable full-length ISA card was designed to provide temporary DC power during an AC outage, automatically save the computer’s working state to the hard drive, safely shut down the system and restore the saved state when power returned.This unusually complete open-box package includes:• Dakota Microsystems PowerSave 500 ISA card
• Serial No. 900700647
• PowerSave Logic Assembly 0100, Revision B
• Internal P8/P9 wiring harnesses
• PowerSave 500 Installation Guide
• PowerSave 500 Technical Manual
• Original box, fitted foam and antistatic packagingThe card remains inside its antistatic packaging and appears exceptionally clean. The outer box shows considerable storage wear, including scuffing, creasing and torn areas.Untested due to age and specialised installation requirements. The original onboard batteries should be presumed discharged and may require replacement. Sold as a vintage collectible or restoration item with no guarantee of present functionality.Please examine all photographs carefully for exact contents and condition. You will receive the complete package shown.
