Quantum QHM6633 4-Port Hi-Speed USB Hub

I was a bit hesitant to buy this product as the rating was average and there were no good reviews. My CPU’s front port were not working and I was too lazy to plug the usb on back side everytime. Anyway, I decided to order the product out of need. Seeing the sellers’ rating I ordered it from Fitnesgalaxy.Product arrived. I tested it extensively. Results are out. I am glad that I have ordered it.The body is completely made of plastic. This has 4 USB ports and there is no provision of input for power supply in case of extra load. Length of wire is 1 m. USB ports seems smaller but fit very well. I tested the product and following are results:===============Tested with :===============Lexar JumpDrive S25 USB 3.0 32GB High Speed Pen DriveSanDisk Ultra CZ48 16GB USB 3.0 Pen DriveSanDisk Cruzer Blade 4GB USB 2.0 Pen DriveTranscend StoreJet 25M3 2.5-inch 1TB USB 3.0 Portable External Hard DriveBuyBox® 7.1 Channel USB External Sound Card Audio Adapter With Mic + UBON CP-008 CONCH Multimedia USB Laptop Mobile Speakers high Bass TrebleMicrosoft Wireless Desktop 800 Keyboard and Mouse Set (reciever used)Configurations tested : 3 Pendrives + harddisk, 3 Pendrives + receiver, receiver + sound card + speaker power + pendrive ,etc. All worked well.All 4 ports can be used at same time.My laptop has USB 2.0 ports and I have seen speed up-to 27 MBps.Here are results when pendrive was directly plugged into computer’s port vs when it was plugged in hub.===============Speed test===============Lexar JumpDrive S25 USB 3.0 32GB High Speed Pen Drive :Direct – 25.6 MBpsOn Hub – 18.5 MBpsSanDisk Ultra CZ48 16GB USB 3.0 Pen Drive :Direct – 25.2 MBpsOn Hub – 18.4 MBpsTranscend StoreJet 25M3 2.5-inch 1TB USB 3.0 Portable External Hard Drive :Direct – 23.7 MBpsOn Hub – 18.0 MBpsSanDisk Cruzer Blade 4GB USB 2.0 Pen Drive :Direct – 4.1 MBpsOn Hub – 4.1 MBpsCopied into all devices simultaneously, net speed = 18 MBpsImages are attached to let you have some idea about space between ports. When Lexar (green) and Sandisk usb 3.0 (black diagonal) are placed adjacently they touch each other though. Just a minor issue.===============Final Verdict===============If your computer has USB 3.0/3.1 ports then buy a USB 3.0 hub. As it is clear that maximum speed I am able to get out of this port is ~19 MBps. It gives about 70% of speed which my port is capable of. I consider it good for this price. If you too have a USB 2.0 ports in your computer like me, then go for it.

Every time we start the computer the hub won’t work. We need to unplug and plug it again to bring this poor box to normal. U can’t do this every time.This is just a electric scrap.Non returnable only replacement available. I don’t know how long Amazon will take to replace this. And I’m expecting the replacement will also do the same. Better to go for a quality product.