# The correct Decklink Duo 2 driver for CasparCG Server 2.3.3

**URL:** <https://casparcgforum.org/t/the-correct-decklink-duo-2-driver-for-casparcg-server-2-3-3/6608>\
**Category:** General\
**Tags:** graphics, template, hardware, playout, server\
**Created:** [June 2, 2024, 9:47am UTC](https://casparcgforum.org/t/the-correct-decklink-duo-2-driver-for-casparcg-server-2-3-3/6608 "2024-06-02T09:47:07Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![aollaku](https://casparcgforum.org/letter_avatar_proxy/v4/letter/a/3ab097/32.png) [@aollaku](https://casparcgforum.org/u/aollaku)\
**Post date:** [June 2, 2024, 9:47am UTC](https://casparcgforum.org/t/the-correct-decklink-duo-2-driver-for-casparcg-server-2-3-3/6608/1 "2024-06-02T09:47:07Z")

</div>

Hello folks,

Please, any advice for the correct driver version for Decklink Duo 2? I have out-of-syn warning messages on the server and the audio has drifted when this message appears in the console. I`m using CasparCG 2.3.3 and the last version of Simple Playout client software 170524\_1. This lipsync issue is happening during the recording process. The CPU usage is between 25-35%. I remember that Decklink had this problem with some driver versions. My actual Decklink driver version is  
10.9.10. Please, I would like to hear any advice for Decklink version or software (Client, server) changes that can cure this problem.

Machine Specs:

HP Z840  
CPU: Xeon E5-2680 v3 (24 Cores, 48 Logical Core)  
GPU: Nvidia Titan RTX  
RAM: 64GB  
HDD OS: 2 SSD 512GB in Raid 0  
HDD Data: 3 HDD 1TB each in Raid 0

I think the specs are more than enough for 2-4 channels Off Air Logger.