Hitachi HB56U232SBA 4MB 72 Pin SIMM RAM Stick Made In Japan Mid 1990s

Hitachi HB56U232SBA 4MB 72 Pin SIMM RAM Stick Made In Japan Mid 1990s DESCRIPTION Vintage 72-pin SIMM RAM module manufactured in Japan by Hitachi. This 4MB stick features the HB56U232SBA-6BN marking and is populated with HM511800BS6 DRAM chips. With its clean contacts and well-preserved build, this is a great collectible for retro computing enthusiasts. Only one stick is included in this listing. These vintage RAM sticks are untested. I don’t have compatible hardware to verify functionality, but they appear to be in excellent physical condition—no bent pins, corrosion, or visible damage. All information provided (capacity, speed, model numbers, etc.) has been sourced online and may not be 100% accurate, as documentation for vintage components can be limited or inconsistent. Please do your own due diligence to confirm compatibility and specs before purchasing. These are being sold as collectible or legacy parts, with no guarantees expressed or implied.