SATA 6Gbps vs 3Gbps for Plex Server

[2canSAM]

HTPC that only does Plex locally and NetFlix, Hulu, Vudu, MLB. No heavy gaming, really no gaming at all 1080P max content, not running any 4K. Most all my movies are ripped to around 4-8GB MKVs.
Current Specs are i5-2400, 8GB DDR3, HD6670. System works very well for what it does.
System Board only has two 6Gbps ports and four 3Gbps ports. My SSD in on a 6Gbps ports while my two 4TB storage drives are on 3Gbps.
Is there any real benefit to moving the Storage Drives to the 6Gbps ports? And the SSD to a 3Gbps. Not looking at having more then two drives for storage any time soon.

 

[mnewsham]

It shouldn't really matter, 5400RPM 4TB drives should at most hit around 150MB/s throughput, a mere 1.2gbps. SATA 2 (3gbps) should be fine.

 

[dave_the_nerd]

Doesn't matter. My concern with a system old enough to have 3Gbps SATA is that it's probably not terribly power efficient to leave on all the time as a server.