TRIM+UASP USB3.0 or Thunderbolt?

[dingobiatch]

I want to change my external drives for my Mac Pro (late 2013, UASP supported) over to SSD's. I don't understand much about TRIM, but the drives I would be getting are Samsung 840 Pro 1TB's, and from what I've read, TRIM is important.

However, everywhere I've looked online says USB3.0 UASP does not support TRIM. Well, the question then is, does Thunderbolt? What Thunderbolt enclosure will support TRIM?

 

[ColdCase]

Thunderbolt supports all SATA commands including trim as well as others like NCQ which improve disk performance. As far as I know all TB enclosures support trim, but you do have to configure/hack the MacOS to enable it (a few terminal commands or an app).

The next generation USB3 may support more SATA commands.

 

[dingobiatch]

The next generation USB3 may support more SATA commands.

So to clarify, current USB3 doesn't support trim right?

 

[SaSaSushi]

So to clarify, current USB3 doesn't support trim right?

That is correct. USB3 does not support TRIM commands.

As mentioned, Thunderbolt has full support for TRIM. It can be enabled using Trim Enabler or Chameleon SSD Optimizer.

What Thunderbolt enclosure will support TRIM?

I use the Delock 42490.

 

[matreya]

What Thunderbolt enclosure will support TRIM?

I have two of these, they support TRIM. I have two 1TB Samsung 840 EVO drives in RAID 0 and get 720MB/sec.

http://www.monoprice.com/Product/?c_id=113&cp_id=11307&cs_id=1130705&p_id=10943&seq=1&format=2