ATEN VS5821 2-Port 8K HDMI Switch
PRODUCT DESCRIPTION
ATEN VS5821 2-Port 8K HDMI Switch - 2 Years Local Warranty
Two 8K Sources, One Display
The VS5821 switches two HDMI sources to one display at up to 7680 x 4320 @ 60Hz (4:2:0) or 4K @ 120Hz with 48 Gbps bandwidth – for example a game console and a gaming PC on one high-refresh TV.
VRR and ALLM Supported
Variable Refresh Rate and Auto Low Latency Mode pass through for smooth, responsive gaming, with HDR10+, 3D, Deep Color and HDCP 2.3.
RapidSync One-Button Switching
ATEN RapidSync high-speed AV switching changes sources instantly at the press of a single button. Audio passes through in LPCM 7.1, Dolby Digital and DTS-HD Master Audio.
Compact essentials Design
At 6.1 x 5.65 cm with accent lighting, it sits neatly by the TV, powered by USB-C with a Type-C to Type-A cable included.
Outfitting gaming rooms or AV showrooms? Email sales@sourceit.com.sg for volume pricing and delivery lead time.
ATEN VS5821 Datasheet — Technical Specifications
General
| Product Name | ATEN 2-Port 8K HDMI Switch |
| Model | VS5821 |
| Order Code | VS5821-AT |
| Local Warranty (Singapore) | 2 years carry-in warranty |
Connectors
| Video Inputs | 2 x HDMI Type-A Female |
| Video Output | 1 x HDMI Type-A Female |
| Impedance | 100 Ω |
| Power | 1 x USB-C (5V / 1A) |
Video
| Max. Resolution | 7680 x 4320 @ 60Hz (4:2:0); 4K @ 120Hz |
| Max. Data Rate | 48 Gbps |
| Compliance | HDMI (3D, Deep Color, 8K), HDCP 2.3 compatible |
| HDR | HDR10+ |
| Gaming | VRR, ALLM |
Audio
| Audio Input / Output | Via HDMI (2 in, 1 out) |
| Formats | LPCM 7.1, Dolby Digital, DTS-HD Master Audio |
Distance
| Max. Cable Distance | 1.5 m at 7680 x 4320 @ 60Hz (4:2:0) |
Switching & LEDs
| Switching | Pushbutton (RapidSync high-speed AV switching) |
| LEDs | 2 x port selected (Orange); 2 x power (Orange, bottom side) |
| Cable Included | 1 x USB Type-C to Type-A (1 m) |
Environmental
| Operating Temperature | 0–40 °C |
| Storage Temperature | -20–60 °C |
| Humidity | 0–80% RH, non-condensing |
Physical
| Housing | Plastic |
| Weight | 0.03 kg |
| Dimensions (L x W x H) | 6.10 x 5.65 x 1.52 cm |
Compatibility & Applications
Typical Sources
Current-generation game consoles, gaming PCs, 8K media players and set-top boxes.
Typical Use
Sharing one 4K@120Hz or 8K TV or monitor between two high-performance sources at home, in gaming lounges or in showrooms.
Selection Tip
Use Ultra High Speed HDMI cables such as the ATEN 2L-7D02H21, up to 1.5 m at 8K. Need four inputs at 4K@60Hz? Choose the VS4841.
Package Contents & ATEN HDMI Switch Ordering Information
In the Box
1 x VS5821 2-Port 8K HDMI Switch, 1 x USB power cable (Type-C to Type-A, 1 m).
ATEN HDMI Switch Models
| Model | Key feature |
| VS381B | 3-port True 4K HDMI switch |
| VS481C | 4-port True 4K HDMI switch |
| VS0801HB | 8-port True 4K HDMI switch |
| VS4841 | 4-port True 4K HDMI switch, IR remote, essentials design |
| VS5821 (this listing) | 2-port 8K HDMI switch, 4K@120Hz, VRR / ALLM |
Datasheet & Downloads
| Datasheet | VS5821 Datasheet (PDF) |
| Quick start guide | VS5821 Quick Start Guide (PDF) |
| ATEN product page | VS5821 on aten.com |
Need a PDF sent directly? Email sales@sourceit.com.sg quoting VS5821-AT.
Frequently Asked Questions — ATEN VS5821
Does it support 4K at 120Hz?
Yes. 4K @ 120Hz and 8K @ 60Hz (4:2:0) are supported.
Will VRR and ALLM pass through?
Yes. ATEN lists VRR and ALLM support.
Is there a remote control?
No. Switching is by the pushbutton on the unit.
How long can the HDMI cables be?
Up to 1.5 m at 8K@60Hz.
What warranty do I get?
2 years local carry-in warranty. Supplied by SourceIT with a GST invoice.





