Set 5 Circuiti integrati W24257-70LL memoria SRAM 32Kx8 bit, 70nS.Usati, ma testati uno ad uno.
Set of 5 W24257-70LL Integrated Circuits, 32Kx8 bit SRAM memory, 70nS. They are used, but each one has been individually tested.
https://www.digchip.com/datasheets/parts/datasheet/523/W24257-70LL-pdf.php