# Pre-Built Sinc Guide Script
If it's your first time getting a pre-built Sinc keyboard, I'll walk you through the process and explain some terms. Each keyboard has additions unique to that individual keyboard, which is why there's a video for each pre-built.
### Switches
We have clicky, tactile and linear switches to choose from.
If you want to send us switches to install in your board, choose the "Customer Supplied" option.
### Rotary Encoders
If you want none, one, or both, this is where you let us know what rotary encoder situation you'd like.
### Left Macro
Some folks like having the extra keys on their board to map nifty things to. Some don't. Let us know which you prefer.
### Left Half Bottom Row
Choose here how your keys are arranged. Consider what size of a spacebar you might like to have.
### Backspace
If you want to have a backspace *and* a delete key, go for the split backspace. If you're vibing with a larger backspace, go for the 2u variant.
### Enter Key
If you like to rock the rectangular shape, go for ANSI. But if you're ann upside-down L shape kind of return key person, go for the ISO.
### Right Shift
Similar to left shift, the choice is yours as to whether or not you want a larger key or two keys.
### Right Half Bottom Row
It looks complicated, but this is giving you the chance to choose your arrangement of keys like the left half bottom.
### Additional Notes
If you're sending us some switches, here is a great spot to let us know and give us the tracking number! Also email us, so we can make sure we have everything that you need.
### USB-C to USB-C Cable
We have white and black, and both come in sizes of 30 centimeters and 1 meter or more.