Performance Black Magic Speed Test
In this chart you can see the maximum performance. The LaCie 5big Thunderbolt is outstanding here, with a write speed almost equal to that of the Pegasus J2 with two 128GB mSATA SSDs. The performance is slightly less than the Pegasus J4 (four 2.5-inch disks in RAID 0). The read speed of the 5big Thunderbolt is slower than the Pegasus J2, but the performance is close to the Promise J4 with hard disks.