I am trying to install in Dell Optiplex 3070 Micro Desktop Computer, Intel Core i5-8500T 2.1GHz CPU, 8GB DDR to upgrade to 16Gb of Ram. will this memory work?

Yes, this memory RAM is compatible with the Dell OptiPlex 3070 Micro.

Questions & Answers: CMS 8GB (1X8GB) Memory Ram Compatible with Dell OptiPlex 3070 Micro, OptiPlex 5070 Micro (MFF), OptiPlex 7070 Micro (MFF), OptiPlex 7470 All-in-One - D36

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CMS 8GB (1X8GB) Memory Ram Compatible with Dell OptiPlex 3070 Micro, OptiPlex 5070 Micro (MFF), OptiPlex 7070 Micro (MFF), OptiPlex 7470 All-in-One - D36

Computer Memory Solutions guarantees compatibility with models provided in description.
Memory Type: Non ECC SODIMM, 260-Pin
Speed: DDR4-21300, 2666 MHz
1 Piece Kit
Product appearance may vary. Picture for reference only. limited lifetime warranty when bought directly from computer memory solutions

$49^.99 –