4GB Team High Performance Memory RAM Upgrade Single Stick For Dell Precision Workstation T3500 T5500 T7500. The Memory Kit comes with Life Time Warranty. at Amazon.com
Amazon.com: Dell Precision T3500 Tower High Performance Business Desktop, Intel Core XEON-W3550 3.06GHz up to 3.33GHz, 12GB RAM, 500GB HDD, 256GB SSD (Boot), DVD, Windows 10 Professional (Renewed) : Electronics
Dell Precision T3500 MT Intel Xeon W3503 2.40GHz 10GB RAM No HDD No OS
Memory for Dell T3500 - Build a PC - Level1Techs Forums
4GB KIT 2 x 2GB for Dell Precision Workstation Series T1600 T1650 T1700 T3500 T3600 T3610 T5500 DIMM DDR3 ECC Unbuffered PC3-12800E 1600MHz Server Ram Memory at Amazon.com