# How much time does it take to copy "Kla.TV-Offline" from one harddisk to one or two others??

##### <span style="background-color: rgb(251, 238, 184);">Expect copying ,Kla.TV-Offline‘ (1.7 TB) to ONE harddisk, to take 12 hours</span>

[![image.png](https://wiki.kla.tv/uploads/images/gallery/2025-03/scaled-1680-/pLe2vYlTz5WgM04h-image.png)](https://wiki.kla.tv/uploads/images/gallery/2025-03/pLe2vYlTz5WgM04h-image.png)

##### <span style="background-color: rgb(251, 238, 184);">Expect copying ,Kla.TV-Offline‘ (1.7 TB) to 2 harddisks simultaneously to take 16 hours</span>

[![image.png](https://wiki.kla.tv/uploads/images/gallery/2025-03/scaled-1680-/DUIVgr377ndYmNL2-image.png)](https://wiki.kla.tv/uploads/images/gallery/2025-03/DUIVgr377ndYmNL2-image.png)

##### <span style="background-color: rgb(251, 238, 184);">These calculations apply to the cheapest available harddisks in the market, each costing around 70$. More expensive harddisks typically are faster.</span>

 ![image.png](https://wiki.kla.tv/uploads/images/gallery/2025-03/scaled-1680-/cuDOUeRItuj6tREF-image.png)