為永續合約現金餘額注入資金，就是把 USDC 從你的代幣現金餘額轉入永續合約現金餘額，讓你有抵押品可以交易永續合約。
兩個餘額都在同一個 fomo 帳戶上，所以這是 app 內的轉帳，而不是從外部充值。
如何轉帳
在手機 app 裡，開啟「投資組合」分頁，點選你的現金餘額，再點選「現金轉帳」。在網頁版 app 上，打開你的個人資料頁，點擊「總現金」旁邊的「轉帳」，或是打開頁面最上方的現金選單，點擊「在代幣與永續合約之間轉移」。
你會看到兩個餘額並排顯示，還有 10%、25%、50% 和 100% 按鈕，會自動填入你轉出餘額的對應比例，你也可以直接輸入金額。
提示表的標題顯示方向。如果顯示「永續合約轉代幣」，請點選「切換」把它變成「代幣轉永續合約」。輸入金額，然後確認：手機上滑動「滑動轉帳」，網頁上點擊「轉帳」。轉帳通常在幾分鐘內完成，到帳後你的永續合約現金餘額就會更新。
最低金額、手續費和時間
轉入永續合約現金餘額的最低金額是 5 USDC。代幣現金餘額和永續合約現金餘額之間的轉帳沒有 fomo 手續費，而且通常在幾分鐘內完成，所以你可以依需要隨時來回移動資金。
轉帳進行中時，這筆金額可能會短暫地在兩個餘額裡都看不到。這是正常的，它會自己到帳，你不需要做任何事。
如果你的代幣現金餘額是空的
如果你的代幣現金餘額裡還沒有任何 USDC，請先用「充值」畫面上顯示的任一方式充值，再回來轉帳。
你的第一次轉帳
你第一次為永續合約現金餘額注入資金時，fomo 會在背景為你建立永續合約帳戶。協議層面有一筆 1 USDC 的帳戶建立費用，但 fomo 會替你支付，所以你不用花任何錢。轉帳完成後，你的永續合約現金餘額就準備好了，可以下第一筆交易。
永續合約（「Perps」）由第三方協議提供，不適用於美國人士（美國公民、居民或任何位於美國境內的人）。請勿嘗試從美國境內存取永續合約。
For purposes of these Terms, a "U.S. Person" means: (i) any natural person resident in the United States; (ii) any citizen or permanent resident of the United States, including any such person temporarily located outside the United States; (iii) any entity organized or incorporated under the laws of the United States or any state thereof; (iv) any estate of which any executor or administrator is a U.S. Person; (v) any trust of which any trustee is a U.S. Person; (vi) any agency or branch of a non-U.S. entity located in the United States; (vii) any discretionary or non-discretionary account held by a dealer or fiduciary organized, incorporated, or (if an individual) resident in the United States; or (viii) any entity organized or incorporated outside the United States that is formed by a U.S. Person principally for the purpose of investing in unregistered securities or derivative instruments. "United States" means the United States of America, its territories and possessions, any state of the United States, and the District of Columbia.
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