The short version
- A 3:1 ratio means up to three concurrent transfers may share the same server resources
- A lower ratio (2:1, then 1:1 on Premium) means less contention and generally faster transfers
- Premium's 1:1 ratio is dedicated capacity — no sharing at all
In practice
- Your plan page shows your current share ratio.
- Higher tiers get progressively less contention.
- Premium gets a dedicated server with no sharing.
FAQ
Does share ratio affect my monthly quota?
No — quota (how much you can transfer) and share ratio (how fast, under contention) are separate things.
Will my transfer definitely run at the ratio's max speed?
Share ratio describes worst-case contention, not a guaranteed speed — most of the time you'll see faster than the theoretical worst case.