The transfer limit depends on the daily transfer limit of each of your HSBC account's top-up instruction linked to your same-name account in other local banks.
You can view the respective maximum daily transfer limit per instruction for a selected local bank (for example, HKD/CNY10,000) when you set up an instruction or in the bank list, which may differ for different banks. For each instruction, you can set a desired daily transfer limit up to the maximum limit specified, which will later reflect and become effective when you top up your HSBC accounts with that instruction.
In addition to the daily transfer limit for each account top-up instruction, there's a daily master limit for fund-in transfer to HSBC accounts via eDDA (across all account top-up instructions) of HKD100,000 (or its CNY equivalent).
Transfers may also be subject to the other banks' respective limits.