The list are some that I liked, but only based on stock/availability in arrow.com and size that could fit: https://www.head-fi.org/threads/the-zishan-dsds-corner.826185/page-116#post-14773107 There are more cap brands/models recommended by others that I want to try. @PochoLaPantera Regarding opening the box, there's one more thing to add about the gold color buttons, they are loose, they are not fixed to any place and will fall. If you open the box, with the buttons side up and slide the LCD screen out into the buttons direction, the buttons will fall inside the box into the LCD and scratch it. So never slide the LCD screen out of the box in the direction of the golden buttons, the boards must go out slowly in the other direction. Also have the buttons side facing down, so they don't fall into the board and scratch it. This problem was reported by some users and is a great warning for all of us. @Themilkman46290 I decided on those you see in the last photo because of small size, it's a compromise for size/capacity/price. We need 6.3 V, low ESR, high capacity, up to 2200uF is recommend in the datasheet. I was already happy with 1000uF, but used lower capacity (2x220uF = 440uF each side) because of size/price. If you have space inside the box, Ivan recommends better options, because of higher capacity. There are a few more posts after the one I quote.