Exchange direction
The pair «what you send → what you receive», e.g. USDT → Sberbank. Each direction has its own rate, reserve and exchanger list.
In more detail
Each direction has its own rate, reserve, limits and exchanger list, so «USDT → Sberbank» and «Sberbank → USDT» are two different pages with different terms. A direct link to the needed direction saves clicks. If a direct direction is missing or unfavourable, an intermediate step through USDT often helps.
