> For the complete documentation index, see [llms.txt](https://docs.xenea.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xenea.io/whitepaper/decentralized-storage-system/fast-track-contents-delivery-manager-fastd.md).

# Fast Track Contents Delivery Manager (FASTD)

**FAST Track Contents Delivery Manager (FASTD)** is a system that can preferentially cache content on DACS nodes, allowing content to be managed in a designated cache area and accessible with low latency.

For example, some financial NFT content requires low-latency time access; using FASTD, content organizers can select these content as FAST Tracks. In addition, the use of Data Transmission System (DTS) can greatly expand CPU cache storage space.

<figure><img src="https://lh7-us.googleusercontent.com/cmxYbTJELw6hhthtfhr185tOMqWBrNmZ4CPDI9IF8-Ofs58O3R7eS8T3RmbFVoXLWCPKkcHTuF2s8k8--bT9Kw9U4SkSYKIcFKmkdMEXeMwRjdhr3mWaLXLnIdkrNV0QokoOTn1Ekj59QROkQzdZkYW-_tFr0ZEA" alt=""><figcaption></figcaption></figure>

<br>

<figure><img src="https://lh7-us.googleusercontent.com/bZreR4dvtaHrrL4j3Tggd9YjOkz6AosSEXbgSXvI82Vz1n3LIH69It43efdm4lgPJv1U8PV_kqxJ--WlFkTecn1fk5VTwP6O9rIe3T2deav4YHENsuRhw95HfsD-qdXQNv6AYBguZyOxgA1rGEgYmQvVjsEOpikm" alt=""><figcaption></figcaption></figure>