4MB Kit (4x 1MB) Toshiba 30-Pin SIMM FPM Desktop Memory RAM (Model: TC511000AJ-70)

A matching vintage 4-piece lot of legacy 30-pin SIMM (Single In-line Memory Module) RAM sticks, offering a total capacity of 4MB (1MB per module). Manufactured in Japan using premium original Toshiba logic chips (TC511000AJ-70), these are Fast Page Mode (FPM) non-ECC, unbuffered memory modules operating at 70 nanoseconds (70ns).Featuring gold-plated contact fingers and a high-density 9-chip design layout per stick, these legendary modules are highly sought after by retro-computing purists restoring early x86 hardware. They are the ideal, period-correct memory expansion for retro systems running Intel 286, 386, or early 486 processors, as well as vintage Apple Macintosh computers and classic musical samplers from the late 1980s and early 1990s. Brand: Toshiba (Made in Japan) Base Component Part Number: TC511000AJ-70 Total Lot Capacity: 4 MB (Four 1 MB modules) Memory Type: FPM RAM (Fast Page Mode DRAM) Form Factor: 30-Pin SIMM Speed: 70ns (Nanoseconds) Chip Configuration: 9-Chip Parity Layout Voltage: Legacy 5V standard Condition: Pre-owned, physical condition is pristine with very clean green solder masks and brilliant gold edge contacts showing negligible insertion wear.