Question 1

Seen conflicting info. Does this monitor have speakers?

Accepted Answer

Yes, It has speakers and on-screen volume control

Question 2

if i get this 4k monitor with 60 hz refresh rate for gaming and set the resolution to 2k or 1440p does the refresh rate go up to say, 75hz or stay the same?

Accepted Answer

Its a 60hz 24bit panel, so it stays the same.  What did you expect from a $330 (when I bought it) 4K 28" TN DP monitor?

Question 3

Does this monitor swivel to portrait orientation ?

Accepted Answer

No, it only has the Landscape mode

Question 4

How does it work for gaming? Can it be run at 1080p if needed to get more fps?

Accepted Answer

Justin,

Yes, but. It depends on the graphics card in your system - it must also be able to drive at your desired resolution and refresh rate -  it also depends on how you are connected. If your card supports it, you should connect DisplayPort. If you do that, you might get 2160p at 60 Hz. If you do want to set the resolution to 1080p, then I am certain you should get an even higher refresh rate. And then it depends on the game software. I have a somewhat obsolete Radion HD 6700 that is driving at 3840 x 2160 and 30 Fps and connected DVI. This is way better on my eyes than the old monitor. I can connect DP, but haven't tried it, yet. I expect I would get 60 Fps.

best,

Question 5

Can someone distinguish if this monitor is MST(Multi-Stream) or SST(Single Stream)? You can tell in the driver of some cards. This spec scares me since its not listed anywhere for this display.

Accepted Answer

When you connect via DP1.2, its a single plug.  My Radeon 290X pushes UHD (3840x2160p) at 60 FPS over this cable to the monitor.  In this mode, its 8 bit per color for 16.7 million colors.  To get 10 bit per color, you have to send FHD at 1920x1080 at 60Hz (8 bits per pixel or 256 levels per pixel times 4 pixels = 1024 levels).  Do remember that this is a TN panel as looking from below really reduces the contrast.  Straight on its fine.  You do not need AA at 4K, because the pixels are smaller than you can see at reasonable distances of 3ft or so.  One would have to be at 21 inches for someone with 20/20 vision to differentiate one pixel from its neighbor.

Question 6

How many "bits" of color does this monitor have?

Accepted Answer

Isn't it 30? The specs say 1.073 G. colors.

Question 7

I see that this has VESA mounts, but does the stand come completely off?

Accepted Answer

Yes, but I haven't needed to.  I do have a pivot, height, tilt, and rotate stand from a previous monitor that I could put on someday.

Question 8

Is the screen matte or glossy ?

Accepted Answer

glossy

Question 9

Does this monitor have VESA mounting holes, and, if so, at what dimensions?

Also, what does it weigh without the stand?

Accepted Answer

Yes, it has VESA holes -100mm spacing

Question 10

Display Port input will that do 60 frames per second @ 1440?

This has 1.4 HDMI, will that older specification do 60 Frames per second, @ 1440?

Is there a DVI to a Display Port connection that would solve the 60 frames per second?

JR

Accepted Answer

The first DP port can do 3840x2160@60hz, so it can do 2560x1440@60hz easily.  HDMI ports 2, 3, and 4 should be able to do the latter as well.   DVI-D can not do 2560x1440@60hz.  You must use dual link DVI-D to do that and this monitor does not have such a port.  Best to just use DisplayPort to the first DP port on the Monitor.  Even my old 7870OC could push 2560x1440p@60Hz.  Its 2GB of VRAM was enough for any reasonable setting at 1440p.

Brand	UpStar
Model	M280A1
Cabinet Color	High Glossy Black + Hairline

Screen Size	28"
LED Backlight	Yes
Widescreen	Yes
Resolution	3840 x 2160 (4K)
Refresh Rate	60 Hz
Viewing Angle	170° (H) / 160° (V)
Monitor Pixel Density	0.16(H) x 0.16 (V)
Display Colors	1.073G
Brightness	300 cd/m2
Contrast Ratio	1,000:1
Response Time	5 ms

Dimensions (H x W x D)	18.23" x 25.94" x 8.43" w/ stand 15.39" x 25.94" x 2.05" w/o stand
Weight	about 22.05 lbs.

UpStar M280A1 High Glossy Black + Hairline 28" 4K UHD HDMI Display Port Widescreen Backlight LCD Monitor

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Item#: N82E16824511002