DisplayPort 1.4 to HDMI 2.1 Adapter 8K with HDR (DP 1.4 to HDMI 2.1) Display Port to HDMI Adapter 4k 120Hz up to 8K 60Hz with HDR Support for RTX 4090, RX 6900, Gaming PC, and More

Excellent product, plug & play operation for my setup and enables the 4K resolutions as standard, no custom configurations required.I purchased the DisplayPort 1.2 to HDMI 2.0a Active adapter to see if it performed better than the older DisplayPort to HDMI Passive adapter I had on hand with a recently purchased 50" flat panel. While the DP-HDMI passive adapter allowed me to display 3840x2160 resolution, I had to create a custom resolution for the NVIDIA GPU. After each reboot, and often after unlocking the screen saver, the custom setting and passive adapter combination would disable the 4K monitor and revert to the base 1920x1080 resolution, requiring multiple time consuming steps to re-enable the 4K monitor. I deemed the custom resolution configuration as the root cause of the instability since using a 40" 4K monitor with the same DP 1.2 port did not result in the same challenges.To satisfy my curiosity I purchased the Uptab adapter, fully expecting that the results would be the same as with the passive adapter.First I tested the Uptab DisplayPort 1.2 to HDMI 2.0a Active adapter with the 40" Seiki SM40UMP that I have been using with a single DP 1.2 connection @ 4K resolution, swapping the DP 1.2 cable with the adapter and a Redmere 18+ Gbps HDMI cable. As expected, the Seiki immediately switched to HDMI and resumed displaying 4K @ 30Hz*.I powered down, switched monitors and connected the Redmere HDMI cable to the 50" monitor using one of the two 4K@60Hz rated ports. After starting back up I was pleasantly surprised when the computer immediately recognized the 50" monitor as with 3840x2160 resolution, requiring no custom resolution configuration. Even more surprising, is that the Uptab DisplayPort 1.2 to HDMI 2.0a Active adapter exposed an undocumented *second* 4K resolution of 4096x2160 @ 24 Hz on the 50" monitor panel! Of course, I tested the 4096x2160 "true 4K" resolution and it works without issue --- Easter Egg in a monitor!Regardless, I switched back to the 3840x2160 resolution to continue testing the stability of the configuration over the next several days. Using the 4096x2160 resolution added a variable and if instability issues resurfaced, would leave me wondering if the root cause was the adapter/monitor combination or the 4096/adapter/monitor combination.My configuration is:Dell Latitude E6520 i7-2720HQM with Intel HD 3000 IGU**NVIDIA NVS 4200M GPU with 512 MB dedicated video memory**Samsung 1TB 850 EVO SSD; 2TB Seagate ST2000LM00716 GB DDR3 1866 Mhz ramDell PR02X E-Port II Plus Docking Station (supplying the 2x DisplayPort/DVI-D ports)- screen shots attached*My current computer configuration will not support 4K@60Hz from a single DP 1.2 port, therefore I cannot test the full HDMI 2.0a 60Hz capabilities of the adapter.**Before anyone points out the fact that the Intel HD 3000 and NVIDIA NVS 4200M GPUs have a documented maximum resolution of 2560x1600, you are absolutely correct --- and I was planning to purchase two 27" 2560x1440 monitors to replace the two 27" 1920x1200 monitors that were failing after 8 years of constant use based on the Dell and Intel documentation. I already had the 50" monitor and decided to see how it would look at the 2560x1440 resolution which led to the discovery that the E6520+Docking Station combination would drive a 4K resolution from a single DP port.Just as Dell's documentation states that the E6520 can only support 8 GB of 1333 MHz ram, it is a well known fact that Dell usually understates the full capacity of the on-board chipset. I've been running 16 GB of 1866 MHz DDR3 ram (2x8 GB DDR3 SODIMM) since mid-2013 without issue and have been watching the prices of the 32 GB 1600 MHz DDR3 SODIMM kits(2x16 GB DDR3 SODIMM) for the past year to see if I can access the full capacity of the Intel chipset in the notebook.

These thing's are like a mine field to navigate, as the vast majority of them simply lie about their capabilities... Knowing that the vast majority of their customers are likely only dealing with 1080p signals, maybe some at 1440p... and a few with 4k @30... Yet they boldly claim that the device can deal out 4k @ 60hz... which again, the vast majority cannot do at all. This one will try, as you'll get an initial image, but it will then go off, then on, then off, then on... as it simply does not have the throughput for all of that data. Try to use it with an Oculus, and basically nothing. The headset will be detected with the computer expecting it to work, but all you'll get is a black screen inside... Maybe a faint hint of an image attempting to begin, but then back to black. I tried it with a Lenovo Thinkpad @ 4k 60, same results... Same with 3 HP laptops, a Dell, and a Toshiba as well... It will work @ 4k 58Hz... but not 59 or above... and I'm guessing that the closer you are to 60, the more likely you will drop a ton of frames in a major dump every now and then... So 4k 30hz is the MOST I'd say this thing can handle. So it will work for Bluray players, DVD, HD set top boxes, etc... but don't attempt to use it on a high res PC setup for ANY reasons... It is not suited for this AT ALL... despite being clearly labeled in all meaningful ways and places as such. It's all lies.The device is likely quite capable in some regards, lower HD resolutions specifically... But that isn't what I bought it for, it isn't advertised as being limited in such a way.... and as such, for my needs and given it's item description, I feel 1 star is actually quite generous.... as it is a $30 item which does absolutely NOTHING in this case.... nothing at all. Other than add a ton of time to resolving this issue.

So far so good. Was able to get my Samsung 40" 6500 4k tv displaying 60fps/60hz through my Radeon R9 Nano with this converter.The email UPTab sends it pretty helpful. Here it is (some links removed):Here are some Tips and Tricks for using your new DisplayPort 1.2 to HDMI 2.0a Active Adapter 4K@60Hz.Many TV manufacturers (Sony, Visio, LG, Samsun) are labeling their HDMI ports as 4k at 60Hz which are NOT HDMI 2.0 capable. Make sure the HDMI port you are using on the TV is HDMI 2.0 capable and not just 4K at 60HZ capable. HDMI port 4K at 60Hz indicates it is HDMI 1.4 capable of running 4K at 60Hz with color sampling of 4:2:0. Our adapters are full specification HDMI 2.0 and support color sampling 4:4:4 at 4K at 60Hz.* If your TV has marking 4K at 60Hz at the HDMI port, you will need to change the color scheme to 4:2:0 in your NVidia or AMD drives settings then change the refresh rate to 60Hz.* Apple MacBook Pro and Mac Pro – For now Apple El Capitan doesn't support 4K at 60Hz out of the box. To be able to enjoy 4K at 60Hz on OSX you need to install SwitchResX to force the 60Hz by creating custom resolution. You can download SwitchResX form madrau.comFirst I downloaded (and purchased) SwitchResX, but you can download a trial that works for 10 days.In El Capitan there is a new security feature called SIP "System Integrity Protection". Unfortunately this prevents SwitchResX from modifying the system files that contain resolution information. But you can temporarily disable "System Integrity Protection" to make changes. Once the resolution has been created and activated, you can turn SIP on again.Disabling SIP requires booting into the recovery partition. You boot in recovery mode by pressing CMD + R when starting up your Mac.Then open a Terminal window. Utilities->Terminal and type the command below: csrutil disableTo re-enable SIP once the changes have been made; boot back into the recovery partition and set state to enabled: csrutil enableNow boot to El Capitan and open SwitchResX. Select the TV from the pane on the left. Then select "Custom Resolution". I entered 3840 x 2160 and made sure that the Scan Rate for Vertical was set to 60 hz. Scaling is also possible.Save the changes (by hitting apply, and rebooting your mac.. it will ask you to save). After the reboot you will see the custom resolution added within SwitchResX under "Current Resolutions" for your TV.* Often TV's have 4 or more HDMI ports, but only 1 is suited for "2.0" standard.* Please disable all TV enhancements like up-converting picture enhancements because in many cases this settings will add lag.* On many TV’s you need to turn on "HDMI UHD Color" manually in the settings of your TV under "Picture Options" for the HDMI port to which your pc/mac is connected.* Pleas make sure "Input Type" is set to "PC" or "Game Mode".* Please make sure your device Mini DisplayPort or DisplayPort are version 1.2 or 1.3.* By default some devices have their Mini DisplayPort and DisplayPorts configured for DP 1.1 and you need to change manually to 1.2.* Also it could help when connecting 2 screens, to set the screen connected thru the Adapter as second/secondary screen.* Use an HDMI cable rated for the bandwidth of 4K "4K HDR, 18 Gbps"