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 included the speed results for both below.
I tested he hub on Windows XP, Windows 7, and Linux. Each operating system I tested saw the memory stick plugged into the hub without problems.
I tested each port by copying a directory with 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 two times on each of the 4 ports. All ports worked with a normal small variations in performances.
✔ 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. The performance remained similar to to test 1.
✔ Third, I tested copying files to 1.0 USB memory stick. The hub is backwards compatible to USB 1.0
✔ Fourth, For comparison I plugged the same memory stick directly into the computer without the USB hub.
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TEST#1 (one USB 2.0 stick)
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Here are clock times (two columns represet each of two tests):
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Port1:_______2:09:54, 2:12:02
Port2:_______2:09:71, 2:04:81
Port3:_______2:16:36, 2:19:16
Port4:_______2:10:60, 2:07:77
Here are the CPU times:
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Port1:_______1.256s, 2.083s
Port2:_______1.524s, 1.692s
Port3:_______1.538s, 1.562s
Port4:_______1.465s, 1.869s
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TEST#2 (two USB 2.0 sticks at the same time)
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Clock times for two devices at the same time:
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Memory stick #1: 2:10:29, 2:22:41
Memory stick #2: 2:10:40, 2:27:58
CPU times for two devices at the same time:
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Memory stick #1: 1.718s, 1.127s
Memory stick #2: 1.781s, 1.459s
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TEST#3 (one USB 1.0 stick)
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Clock time:_______5:08:30, 5:06:75
CPU time:_________1.191s, 1.433s
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TEST#4 (one USB 2.0 stick plugged directly into the computer)
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Built in Port CPU:____2.873s, 3.325s
Clock time:___________4:03:30, 3:55:16
I was provided a sample for evaluation and I ran it through 32 tests in order to provide unbiased and honest review. The unit performed well and met my expectations for a 5 star rating. If there was anything I wanted to change about this unit, I would have made its cord just a little longer.
I am attaching a photo of this unit during the two memory stick test. The photo gives you a good idea of the relative size of this unit.
You can find it on Amazon by following this link.
AshopZones review ★★★★★
