# Transfer speed between PC and Synology NAS

**URL:** <https://forums.spacerex.co/t/transfer-speed-between-pc-and-synology-nas/3426>\
**Category:** Synology\
**Tags:** hardware\
**Created:** [August 13, 2025, 10:15am UTC](https://forums.spacerex.co/t/transfer-speed-between-pc-and-synology-nas/3426 "2025-08-13T10:15:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Apock](https://forums.spacerex.co/user_avatar/forums.spacerex.co/apock/32/1457_2.png) [@Apock](https://forums.spacerex.co/u/Apock)\
**Post date:** [August 13, 2025, 10:15am UTC](https://forums.spacerex.co/t/transfer-speed-between-pc-and-synology-nas/3426/1 "2025-08-13T10:15:28Z")

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I got myself a new PC, and thats always a good thing 😀

When I transfer files between my PC’s the speed is around 100 mb/s, both ways, and from my old PC to my Synology NAS it’s also around 100 mb/s.

From my new PC to my NAS the transfer speed is only 25-28 mb/s – both ways. I have tried to change cable (CAT 6), change the port in the switch, uninstall antivirus/firewall (Norton) – nothing changes.

Any ideas about what could be the problem?

//Anders

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**Author:** ![Paul](https://forums.spacerex.co/user_avatar/forums.spacerex.co/paul/32/93_2.png) [@Paul](https://forums.spacerex.co/u/Paul)\
**Post date:** [August 14, 2025, 9:31am UTC](https://forums.spacerex.co/t/transfer-speed-between-pc-and-synology-nas/3426/2 "2025-08-14T09:31:04Z")

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Two remarks. First, please be aware of the difference between mb/s and MB/s. The difference is approximately tenfold. You write mb/s (megabits/sec) but probably mean MB/s (megabytes/sec).

That said, my first guess is WiFi. Make sure it is disabled. Another potential cause your NAS. Perhaps you can share some details about model, # of disks, pool RAID type, and volume size and % in use.