expired
27" AOC Q27G40XMN 1440p QHD 180Hz VA Mini-LED Gaming Monitor
$200
$300
33% off
+ Free Shippingat eBay
Missed This Deal? Get alerts when similar deals are posted.
+ Free Shippingat eBayDeal Details
Best Buy via eBay has 27" AOC Q27G40XMN 1440p QHD 180Hz VA Mini-LED Gaming Monitor (Black) on sale for $199.99 (discount shown in cart or by clicking 'See price' link). Shipping is free.
Best Buy also has 27" AOC Q27G40XMN 1440p QHD 180Hz VA Mini-LED Gaming Monitor (Black) on sale for $199.99. Shipping is free or select free store pickup where stock permits.
Specs:
Best Buy also has 27" AOC Q27G40XMN 1440p QHD 180Hz VA Mini-LED Gaming Monitor (Black) on sale for $199.99. Shipping is free or select free store pickup where stock permits.
- Note: Availability for pickup may vary by location.
Specs:
- Resolution: 2560 x 1440
- Refresh Rate: 180Hz
- Response Time: 1ms
- Panel: Fast VA Mini-LED
- Brightness: 1200 nits
- VRR: G-SYNC Compatible (NVIDIA Adaptive Sync)
- VESA Wall Mount Standard: 100mm x 100mm
- Ports:
- 1x 3.5mm Headphone Jack
- 1x DisplayPort 1.4
- 1x HDMI 2.0
Editor's Notes
Written by Nate650 | Staff- About this deal:
- This offer is $30 less than this previous frontpage deal from January.
- About this product:
- Rated 4.3 out of 5 stars based on over 95 Best Buy customer reviews.
- 3 years parts & labor warranty
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Best Buy via eBay has 27" AOC Q27G40XMN 1440p QHD 180Hz VA Mini-LED Gaming Monitor (Black) on sale for $199.99 (discount shown in cart or by clicking 'See price' link). Shipping is free.
Best Buy also has 27" AOC Q27G40XMN 1440p QHD 180Hz VA Mini-LED Gaming Monitor (Black) on sale for $199.99. Shipping is free or select free store pickup where stock permits.
Specs:
Best Buy also has 27" AOC Q27G40XMN 1440p QHD 180Hz VA Mini-LED Gaming Monitor (Black) on sale for $199.99. Shipping is free or select free store pickup where stock permits.
- Note: Availability for pickup may vary by location.
Specs:
- Resolution: 2560 x 1440
- Refresh Rate: 180Hz
- Response Time: 1ms
- Panel: Fast VA Mini-LED
- Brightness: 1200 nits
- VRR: G-SYNC Compatible (NVIDIA Adaptive Sync)
- VESA Wall Mount Standard: 100mm x 100mm
- Ports:
- 1x 3.5mm Headphone Jack
- 1x DisplayPort 1.4
- 1x HDMI 2.0
Editor's Notes
Written by Nate650 | Staff- About this deal:
- This offer is $30 less than this previous frontpage deal from January.
- About this product:
- Rated 4.3 out of 5 stars based on over 95 Best Buy customer reviews.
- 3 years parts & labor warranty
Community Voting
Deal
Score
+33
Good Deal
Bad Deal
Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!
11 Comments
Sign up for a Slickdeals account to remove this ad.
I'm on a G9 49" OLED personally. So we're in two different universes, display-wise.
FWIW, here's the RTings review. https://www.rtings.com/monitor/re.../q27g40xmn
Sign up for a Slickdeals account to remove this ad.
This is what it gave me for my 9070 xt
PART 1 — Fix SDR First (Turn HDR OFF)
Yes — disable HDR in Windows for now.
Step 1 — Disable Windows HDR
In Windows:
- Right-click Desktop
- Display Settings
- Click the AOC monitor (make sure you're adjusting the correct display)
- Scroll to HDR
- Toggle HDR OFF
Now we're in clean SDR mode.PART 2 — Fix Monitor (OSD Settings on the AOC)
All of this is done using the monitor's physical joystick/button.
Open the monitor menu → this is the OSD (On-Screen Display).
Step 2 — Set Correct Picture Mode (Monitor OSD)
In the OSD:
Game Setting / Picture Mode → choose:Do NOT use:
- FPS
- RTS
- sRGB
- HDR modes (we disabled HDR)
Those lock or distort gamma and color.Step 3 — Turn Local Dimming OFF (for SDR)
Still inside OSD:
Picture → Local Dimming → OFF
Mini-LED local dimming in SDR can cause:
- Raised blacks
- Gamma shifts
- Washed midtones
We only use it in HDR.Step 4 — Set Gamma Properly
OSD → Gamma:
- Try Gamma 2.2 first
- If blacks still look grey → try 2.4
2.4 gives deeper perceived contrast in dim rooms.Step 5 — Fix Color Temperature
OSD → Color Temp → User
Set approximately:
- Red: 50–55
- Green: 50–55
- Blue: 45–48
This reduces the cool/blue wash VA panels often ship with.Step 6 — Brightness & Contrast
In SDR:
- Brightness: 35–50 (adjust for your room)
- Contrast: Leave default (usually 50)
Do NOT max brightness in SDR — it flattens contrast perception.PART 3 — AMD Adrenalin Settings (Very Important)
Now we make sure Windows/GPU aren't washing things out.
Open AMD Adrenalin → Settings (gear icon) → Display
Select the AOC monitor.
Check:
Pixel Format
Set to:If it's on Limited, colors will look grey and washed.
Custom Color (Optional but Helpful)
Enable Custom Color and try:
- Saturation: 105–110
- Contrast: 100
- Brightness: 0
Do NOT go crazy here. Small changes only.At this point, in SDR, the AOC should look:
- Deeper blacks than your Omen
- Slightly less "pop" (IPS has more perceived vibrancy)
- More contrast overall
If it still looks flat in SDR after this, we dig deeper.PART 4 — Now Let's Set Up HDR Correctly
Only after SDR looks good.
Step 1 — Turn HDR Back On in Windows
Windows → Display → Select AOC → HDR → ON
Step 2 — Run Windows HDR Calibration Tool
Search in Windows:Follow the 3 brightness screens carefully:
- Set minimum so black is just barely visible
- Set peak brightness to where logo just disappears
- Adjust color saturation slider conservatively
This step is CRITICAL.Step 3 — Monitor OSD in HDR Mode
When HDR is active:
OSD → HDR Mode → choose:Then:
OSD → Local Dimming:Avoid Strong — it causes blooming and desaturation on this model.
Thank you.
Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!