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8GB DDR4 RAM Memory Upgrade for Dell OptiPlex 3046 Micro, Optiplex 7040 Micro, Optiplex 7440 (PARTS-QUICK) - Walmart.com
![A-Tech 4GB Memory RAM for Dell OptiPlex 7040 MT - DDR4 2666MHz PC4-21300 Non ECC DIMM 1Rx16 1.2V - Single Desktop Upgrade Module (Replacement for SNPCND02C/4G) at Amazon.com A-Tech 4GB Memory RAM for Dell OptiPlex 7040 MT - DDR4 2666MHz PC4-21300 Non ECC DIMM 1Rx16 1.2V - Single Desktop Upgrade Module (Replacement for SNPCND02C/4G) at Amazon.com](https://m.media-amazon.com/images/I/71Y0uQXlYPL.jpg)
A-Tech 4GB Memory RAM for Dell OptiPlex 7040 MT - DDR4 2666MHz PC4-21300 Non ECC DIMM 1Rx16 1.2V - Single Desktop Upgrade Module (Replacement for SNPCND02C/4G) at Amazon.com
![Here's my Dell Optiplex 7040, started life as an i5 6400 Inspiron 3650. Slowly upgraded piece by piece to what it is today. It's sporting an i7 6700, GTX 1650 Super, 32 Here's my Dell Optiplex 7040, started life as an i5 6400 Inspiron 3650. Slowly upgraded piece by piece to what it is today. It's sporting an i7 6700, GTX 1650 Super, 32](https://i.redd.it/tlqkm5kceyv51.jpg)
Here's my Dell Optiplex 7040, started life as an i5 6400 Inspiron 3650. Slowly upgraded piece by piece to what it is today. It's sporting an i7 6700, GTX 1650 Super, 32
![CMS 16GB (2X8GB) DDR4 19200 2400MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® OptiPlex 3050 All-in-One, OptiPlex 7040 Micro, OptiPlex 7440 - C109 at Amazon.com CMS 16GB (2X8GB) DDR4 19200 2400MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® OptiPlex 3050 All-in-One, OptiPlex 7040 Micro, OptiPlex 7440 - C109 at Amazon.com](https://m.media-amazon.com/images/I/71zOcmPZHaL._AC_UF894,1000_QL80_.jpg)
CMS 16GB (2X8GB) DDR4 19200 2400MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® OptiPlex 3050 All-in-One, OptiPlex 7040 Micro, OptiPlex 7440 - C109 at Amazon.com
![CMS 32GB (2X16GB) DDR4 17000 2133MHz Non ECC DIMM Memory Ram Upgrade Compatible with Dell® OptiPlex 7040 Mini Tower - C69 at Amazon.com CMS 32GB (2X16GB) DDR4 17000 2133MHz Non ECC DIMM Memory Ram Upgrade Compatible with Dell® OptiPlex 7040 Mini Tower - C69 at Amazon.com](https://m.media-amazon.com/images/I/610v3OAotUL._AC_UF894,1000_QL80_.jpg)
CMS 32GB (2X16GB) DDR4 17000 2133MHz Non ECC DIMM Memory Ram Upgrade Compatible with Dell® OptiPlex 7040 Mini Tower - C69 at Amazon.com
![OFFTEK 16GB Replacement Memory RAM Upgrade for Dell OptiPlex 7040 (Micro) (DDR4-19200) Desktop Memory at Amazon.com OFFTEK 16GB Replacement Memory RAM Upgrade for Dell OptiPlex 7040 (Micro) (DDR4-19200) Desktop Memory at Amazon.com](https://m.media-amazon.com/images/I/61PiAOQG2NL._AC_UF894,1000_QL80_.jpg)