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Below are the details of the RAM supported for the system Inspiron 3537:
Memory module connectorTwo internally-accessible DDR3L SODIMM connectors
Memory module capacities2 GB, 4 GB, 6 GB and 8 GB
Memory type1600 SODIMM DDR3L
Minimum memory2 GB
Maximum memory16 GB
You may purchase any RAM of the above given configuration. However, we recommend you purchase the RAM from a Dell outlet. We are not responsible of the performance if a third party RAM is installed.
Let us know if you have if you have any further queries