Can we upgrade Dell's basic Server R240 (which still uses HDD 7200RPM) to an SSD?

Solution 1:

On Dell's R210, R220 and T130 I've successfully used Sandisk's consumer grade SSDs for years. I've done this with PERC's H410 and H710 controllers.

It will be a matter of controller and controller's firmware more than server brand/model.

Also, you'll probably have issues to find disk trays. I ended up buying it used on a famous refurbished hardware shop.

And regarding the optional first question, Dell sells servers equipped with SSDs for sure, maybe you should look to more expensive models.

Solution 2:

Yes, you can swap HDDs <-> SSDs the way you want. Moreover, it's OK to use non-Dell branded SSDs inside Dell servers, you won't receive support (of course!) and some functions won't work like LEDs, iDRAC etc, but in general it's a way to go.