Hp proliant ml350 gen8 v4 tower server can support a maximum of 2 quad (4) core, all the way up to 22 (22) core cpu's, 1.5tb pc3 ecc ddr3 memory, 8x pci express slots housing and array of fibre, nic and storage controller cards.
this server has two hot plug power supply slots housing two 500w, 800w or 1400w hot plug power supplies.
this servers comes with an integrated hp b140i sata controller which supports either raid 0 or raid 1. if you need a controller that supports sas hard drives and raid 5, raid 6, raid 10, raid 50, raid 60 adg then you'll need to upgrade to the hp p440ar/2gb flash backed write cache smart array controller, or the hp p840ar/4gb flash backed write cache smart array controller. you can also install the hp h240ar 12gb host bus adapter. the hp ml350 gen9 includes a base 8 bay sff (small form factor) hard drive backplane and bay, supporting up to 8x ssd/sas/sata 2.5" hard drives