Sun 596-5819 is a 4GB DDR2 RDIMM memory module, with 667MHz and ECC.
Sold refurbished and in stock at Memory Clearance.
Reference part number 596-5819 when matching this listing to a quote, purchase order or existing inventory; Memory Clearance lists it under Server Memory.
Quoted on request; no list price is published for this part number. Include the quantity needed with the quote request.