The Bolse USB hub is 4.25" x 1.75" x 1". It has 7 USB slots are located on three sides of the unit. The back panel take the power code and USB plug that plugs into your computer. The top contains a light for each USB slots, and lights up when something is plugged in. The USB cord is 39". Its power cord cord is 47" long. The USB unit weights 5.7 oz, the power plug and cord weigh 4.5 oz.
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 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 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 the same test on each of the 7 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 was somewhat slower compared to test 1.
✔ Third, 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:
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Port1:_______1:23.65
Port2:_______1:55.40
Port3:_______1:15.83
Port4:_______1:16.92
Port5:_______1:24.54
Port6:_______1:55.10
Port7:_______1:50.21
Here are the CPU times:
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Port1:_______0.791s
Port2:_______0.887s
Port3:_______0.543s
Port4:_______0.696s
Port5:_______1.003s
Port6:_______0.880s
Port7:_______0.851s
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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: 2:01.58
Memory stick #2: 2:27.68
CPU times for two devices at the same time:
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Memory stick #1: 0.954s
Memory stick #2: 1.234s
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TEST#3 (one 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 3 photos of this unit. They can be located by following 'customer photos' link under the main photo. The first photo shows the USB unit, and its two cords. The second photo shows the back of the unit. The third photo shows the unit while I was doing one of the test. This photo gives you a good idea of the relative size of this unit. You can also see the lights on the top of the unit: the left most light indicates that the unit is plugged in and the the second light shows that port 5 contains a device.
I was provided a sample for evaluation and I ran it through 16 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.
Ali Julia review ★★★★★
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