https://www.ebay.com/sch/i.html?_nkw=Addon+16Gb+Ddr3+1333Mhz+Dr+Rdimm+F+Dell&_sacat=0&_dmd=2

Addon 16Gb Ddr3-1333Mhz Dr Rdimm F/ Dell

$131.00
$83.00

ADDON 16GB DDR3-1333MHZ DR RDIMM F/ DELL