The documentation states that this hub USB 3.0 is backwards compatible with USB 2.0. I tested with USB 2.0 and USB 1.1, and it is backwards compatible with both.
I tested the hub on Windows XP, Windows 7, and Linux. Each operating system I tested saw the memory stick plugged into the hub without problems.
To evaluate each port I tested each port by copying a large set of mp3 files totalling 638916 Megabytes. I measured CPU time and clock time. I wanted to test that all ports worked, I wanted to test if there was a significant difference in performance between ports, and I wanted to see if copying to multiple memory sticks at the same time would slow down the copying.
✔ First, I tested each port using 2.0 USB memory stick. I ran each test twice and the tables below show the average of two results for each port. I ran a total of 14 tests in this part of the test. All ports worked with a normal small variations in performances. The results of these are presented in the tables below.
✔ Second, I tested copying files onto two 2.0 USB memory sticks at the same time, to see of the copying slows down compared to working with one stick at a time. I ran 2 tests with 2 sticks at the same time, and the results below show the average of the two tests. The performance was slightly slower compared to test 1 (this is normal and expected).
✔ Third, I used USB 1.0 memory stick for comparison in speed and to verify that 1.0 USB memory stick works.
✔ Finally, For comparison I plugged the same memory sticks directly into the computer without the USB hub.
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TEST#1 (single USB 2.0 stick)
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Port1:_______0.551s (cpu) 1:19.06 (clock time)
Port2:_______0.544s (cpu) 1:19.12 (clock time)
Port3:_______0.542s (cpu) 1:15.96 (clock time)
Port4:_______0.890s (cpu) 1:23.06 (clock time)
Port5:_______0.408s (cpu) 1:18.72 (clock time)
Port6:_______0.547s (cpu) 1:18.77 (clock time)
Port7:_______0.536s (cpu) 1:19.41 (clock time)
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TEST#2 (two USB 2.0 sticks at the same time)
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Memory stick #1: 0.926s (cpu time) 2:02.37 (clock time)
Memory stick #2: 0.826s(cpu time) 2:02.21 (clock time)
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TEST#3 (single USB 1.0 stick)
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Port5:_______1.184s(cpu) 5:05.11 (clock time)
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TEST#4 (single USB 2.0 stick plugged directly into the computer)
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CPU time: 0.851s
Clock time: 1:54.24
I am attaching a collage of 2 photos of this unit. The first photo shows the front of the USB unit during
2 memory stick test. The second photo shows the back of the unit.
I was provided a sample for evaluation and I ran it through 19 tests in order to provide unbiased and honest review. The unit performed well and met my expectations for a 5 star rating.
You can find it on Amazon by following this link.
AshopZones review ★★★★★
