This is retro style enclosure for XK-4KX buck boost converter.
For power supply you can use 12 or 24V max 4A power supply if you going to use the same USB ports. If you want to use different USB port you need to double check correct voltage for that.
Front and back panels are editable so can be modified as you want. I've added a step files for those panels.
To mount panels together I tapped top and bottom panel with M4 thread.
Fasteners used:
8x M4x12mm Socket Head Screw

Buck-boost converter XK-4KX:
https://pl.aliexpress.com/item/1005004994125356.html?spm=a2g0o.order_list.order_list_main.32.7e7b1c24poZ5IE&gatewayAdapt=glo2pol
Banana sockets:
https://pl.aliexpress.com/item/4001281117583.html?spm=a2g0o.order_list.order_list_main.51.7e7b1c24poZ5IE&gatewayAdapt=glo2pol
USB socket 12x24V:
https://pl.aliexpress.com/item/1005003194835052.html?spm=a2g0o.order_list.order_list_main.27.7e7b1c24poZ5IE&gatewayAdapt=glo2pol
Fuse holder was bought in local store but looks like this one:
https://pl.aliexpress.com/item/1005004735894157.html?spm=a2g0o.productlist.main.17.6e1c18b8j4118z&algo_pvid=fb176c97-6e80-481a-8ce0-b94783444f93&aem_p4p_detail=2023121010064617234698964028010001990130&algo_exp_id=fb176c97-6e80-481a-8ce0-b94783444f93-8&pdp_npi=4%40dis%21PLN%213.71%213.7%21%21%210.90%21%21%40211b88f017022316067867669e7ec7%2112000030285815926%21sea%21PL%211864245025%21&curPageLogUid=6CX8IUN5wTd3&search_p4p_id=2023121010064617234698964028010001990130_9
DC port was bought in local store but is similar to this one:
https://pl.aliexpress.com/item/32985876868.html?spm=a2g0o.productlist.main.21.218e70c7kuIMXQ&algo_pvid=df66bbfd-1590-43f7-b22c-4ae4e8a4aeab&algo_exp_id=df66bbfd-1590-43f7-b22c-4ae4e8a4aeab-10&pdp_npi=4%40dis%21PLN%215.07%215.15%21%21%211.23%21%21%40211b88ee17022316994201890e93fe%2110000000555848623%21sea%21PL%211864245025%21&curPageLogUid=pAue471V5ZTp
On/Off Push Button:
https://pl.aliexpress.com/item/1005004981678168.html?spm=a2g0o.productlist.main.15.6ec472125reShe&algo_pvid=9bca94d1-736b-4dca-815e-700fab089085&aem_p4p_detail=20231210101601511110894656400002077097&algo_exp_id=9bca94d1-736b-4dca-815e-700fab089085-7&pdp_npi=4%40dis%21PLN%213.93%214.09%21%21%216.83%21%21%40211b88ee17022321609967722e9405%2112000031307214211%21sea%21PL%211864245025%21&curPageLogUid=nRHuRicEFJAL&search_p4p_id=20231210101601511110894656400002077097_8