Yes we do, the deposit is calculated by the total cost of the particular invoice.
Only products with a lead-time require a deposit, if you buy a cable available to ship immediately you will not be required to pay a deposit.
Paying a deposit secures your order, we base shipping schedules on when deposits are paid.
How soon can I pay the full amount?
You can settle the balance on the order at anytime, payment instructions are on your invoice.