Here is are two 4GB DDR3 DIMMs made in 2013 by Hynix to handle memory transfer rates to 1600 MT/sec. These are standard, unbuffered, non-ECC memory modules. Each is a 240-pin double-sided DIMM with eight CL11 chips on each side (organized as 2Rx8). These will work only in 1.5V DIMM sockets.
Buyer will receive two 4GB DIMMs as pictured here, but with datecodes of 1301 and 1323
Shipping via USPS first class mail is FREE within the U.S. and reasonable elsewhere.
I welcome questions from interested bidders and offer a 30 day return privilege .