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Capture Cards Reviews

AVerMedia Live Streamer CAP 4K Review (BU113) – So Much More Than a Cam Link!

AVerMedia has released a new capture card in the “Cam Link” market and it… beats out just about every competing device, and is cheaper! $99 gets you a low-latency cam link alternative that also supports high refresh rates and HDR!

PRODUCT LINK (Amazon Paid Link):

Physical Overview

This new capture card is in the typical “Cam Link” style form factor – which means no passthrough, just a HDMI input and USB output. USB 3.2 Gen 1 at 5gbps is used here. The shell is plastic but doesn’t get too hot. A status LED indicator sits in the middle.


Live Streamer CAP 4K supports up to 4K 60hz, up to 1440p 144hz and 1080p 60hz inputs. You can only capture in 4K 30FPS or 1080p 60FPS, however. HDR input is supported and it’s automatically tonemapped to SDR.

This makes the CAP 4K not only great for using with your camcorder, mirrorless or DSLR camera for video conferencing or a facecam for streaming – but also great for gameplay if you have an appropriate HDMI splitter to pair with it.


This capture card features an absurdly low preview latency in OBS Studio. It comes in at 40ms – the second-fastest capture card I’ve reviewed. This means it will be super easy to sync up your audio and video without many issues.

Capture CardPreview Latency (OBS)
Black 4K USB 3.0 HDMI Video Capture Card (Lattice)128
EasyCrap "USB 3" Dongle #1126
Genki Shadowcast115
Narvitech U2 HD60 Pro100
Bird Dog NDI Flex 4K IN85
AVerMedia Live Gamer Mini (GC311)82
ATEN CamLive+80
EVGA XR1 Lite78
AGPTek VG0061 EZCap U377
Black USB 3 4K HDMI Capture LT76
ClonerAlliance Flint 4KP Plus75
Silver "USB 3.0 HD Capture" w/ Power LT75
Magewell USB Capture HDMI 4K Plus73
ClonerAlliance Flint 4KP71
Elgato 4K60 Pro71
Riiai YK75269
Razer Ripsaw HD67
Razer Ripsaw65
Mokose U70S64
AVerMedia Live Gamer Extreme 2 (GC551)63
Elgato Cam Link 4K63
AVerMedia ExtremeCap UVC61
Magewell XI100DUSB-HDMI61
Elgato HD60 S+61
Bird Dog Studio NDI60
Elgato 4K60 Pro MkII58
BlackMagic Decklink Mini Recorder 4k57
Elgato HD60 S57
AVerMedia Live Gamer Ultra (GC553)55
Elgato HD60 Pro51
Elgato Cam Link (Gen 1)51
EZCap GameLite RAW (ezcap321)50
Digitnow U60150
Pengo 4K HDMI Grabber49
Magewell 4K Pro Capture HDMI Plus LT48
BlueAVS/GOODAN/Generic HDMI to USB 2.048
AVerMedia Live Gamer Duo (1)43
AVerMedia Live Gamer Duo (2)42
AVerMedia Live Streamer CAP 4K40
AVerMedia Live Gamer 4k (GC573)36


Mac and Linux are both supported as this is a UVC capture card. I was able to get Linux capture working flawlessly, but I did run into some struggles in Mac OS with my M1 Mac Mini.

This also means it’s plug and play on Windows and works with video calling apps such as Skype, Discord, Zoom, etc. by showing up as a webcam.

Retro Captures

This capture card excels at retro gaming captures, but it’s not perfect. RetroTINK 5X works up to 1200p, but 1440p 6X does not work. 480p from the 5X and the RetroTINK 2X work fine. OSSC 2X through 5X work fine, as well!


This capture card gets access to AVerMedia’s CamEngine software and its AI face tracking, ePTZ and face mask overlay features. This is a neat gimmick, but I don’t find it very usable – at 4K30, the face tracking for masks is super laggy and does not keep up with my face and the ePTZ zooming pulses really obnoxiously. All this while using up a significant usage on my RTX Titan. Nvidia Broadcast is definitely the better choice here.

PRODUCT LINK (Amazon Paid Link):

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