1. Unit is rock solid in both, performance and build construction. 2. The Power and USB Connector interface was redesigned. A tight interference fitment = zero issues. 3. Been using this since October 2021 24/7 on a 2014.5 Macbook Pro Retina with zero issues 4. The speed / port speed checks out 5. The two charging ports charge an iPod Classic 160GB as well as stylus pens and small USB desk lamps. 6. Tested on a 2014.5 Macbook Pro Retina running OSX 10.15.3 and Boot Camp running Windows 10 7. Running memory cards affixed into a USB Media Transfer Hub works flawless and just as good as directly mated to the MBP Laptop Port. 8. Even running an iPod works fine - the computer sees it without asking to connect it directly to the MBP. 9. Garmin Diesel 740Z mated up charged without issue and was later connected without issue when running firmware and map updates. *See Note 10. Firmware updates for the Kinesis keyboard - no issues when connected to the USB Hub. ** See Note * ** NOTE: As a rule of thumb here: I don't recommend getting into the habit of running firmware updates while attached to a Hub. My default recommendation is mating to the laptop ports and bypassing USB hubs in general. The old design issues involving the USB and power connector were designed out and replaced with rock solid fitment. Form, Fit and Function under quality control are superb on the unit I received in October of 2021. USB Front Port Fitment is firm and tight and feels very robust upon insertion without side to side slop like on other ports I've tested. Same applies to the two charging ports on the right side. The Power <ON> button always works and never flakes out. USB Hub work with both Windows 10 and Mac OS 10.15.3 without issue. No issues on either Device Manager. This hub is the first one that does not get impacted by sudden power outages or during times of hot swapping devices involving removal of the main USB connector at the laptop port. On OTHER Hubs -upon reconnect post reconfiguring and or cleaning like all the past ports I've had. This is the first and only hub i've used that doesn't require cycling <POWER> and a total reconnect in a certain sequence regarding connecting external devices to get it working post power outages etc.. This is the first USB Hub I've had that is simply Plug & Play across the board without all the memory issues associated with older style hubs. I run two external Kenisis Ergonomic Keyboards and a Kensington Slimblade trackball setup running off the older version of Kensington's Trackball Works without issue or interrupts / random disconnects. Other USB hubs had issues post sleep / wake / power <OFF> power <ON> wherein, the Kensington Software would not see the trackball thus forcing one to remove the device and reconnect in order to get the software to "see" the trackball. This USB has none of those issues. This is thee best USB Hub out of seven that I've ever used. I'd order another as a backup in fact. I highly recommend this model knowing the issues that plagued older revisions were redesigned and reconfigured with new hardware to remedy those failures. The cats have jumped up and toppled my keyboard trays with trackball off the desk and yanked the USB hub - dangling by the cable and it was still online and connected. These cables are securely fitted into this newly designed hub (Note: Mine was delivered to me October 2021 per order history). The transfer speeds have been just as fast as the laptop ports. Highly Recommend this particular USB Hub. Hopefully, it's going to last many years (reliability). I've only had it since October of 2021. The Hub has been in use nearly 24/7.