Hallo and Welcome.

1 x Hose cutter for a maxi... - OK
1 x Double Protect Ultra 1... - You need more then 1 Liter of Coolant - 3l should be the best choice for a starter
1 x Revoltec cold cathoden... - LED are better then these Cathodes because they don't mess up with the Voltages
1 x cuplex kryos HF for So... - OK
2 x Grafikkarte GeForce GT... - OK and very nice
1 x twinConnect kit for GT... - OK
1 x airplex modularity sys... - OK but a bigger one is always better. Try to get a 480 or a 420 (140mm Fans) especially with the GPUs you want to buy.
1 x aquastream XT USB 12V ... - OK
1 x aquabus / RPM signal c... - Don't need one, because there is one in AS already
1 x Connector set for 1046... - OK
1 x Decoupling set for pum... - OK but you should use the Shoogy Sandwitch
1 x aquastream XT Firmware... - You don't need one - the AS you will get has the newest Firmware and you are able to flash the AS over the aquaero
1 x aquatube G1/4 Copper E... - OK
1 x Illumination module UV... - Your Coolant is not UV reactive, so you don't need the UV Module
1 x aquajet rinsing device... - OK
1 x aquabay AT (installati... - OK
1 x Hose Tygon R3603 12,7/... - OK but to less. Normally you use 1 to 2m in a loop. As a starter you maybe need some tries for the right configuration - get 4m
18 x Coupling 13/10 mm G 1/... - OK - You need a Pair for each Product
1 x Arctic Silver 5 Heat c... - OK
1 x Frontplate for aquabay... - OK
1 x poweradjust 2 USB, ult... - OK , but you will need one of these when you want to control a Laing or a huge amount of fans.
1 x aquaero 5 XT USB fan c... - OK
1 x aquaero powerbooster a... - This is for the old AE4 - doesn't need the service
1 x aquastream connection ... - This is for the Old AS 3.5 - doesn't need one
1 x Connection cable for f... - OK
1 x Flow sensor "high flow... - OK
1 x Temperature sensor 70 ... - In the Box of the AE 5 are 4 of these Sensors included
1 x Frontplate for aquaero... - OK
1 x RGB illumination modul... - OK - You will need one of these
1 x waterblock for aquaero... - OK
1 x multiswitch USB 1.41 V... - OK
1 x tubemeter USB fill lev... - OK
1 x aquabus cable for tube... - OK
1 x poweramp Verstärkerpl... - OK - The Poweramp is only necessary if you want to power more than 4 fans on 1 channel of the AE5
1 x ArctiClean cleansingset - OK
1 x 10-pack Thumbscrews black - OK
4 x Decoupling rubber for ... OK
4 x be quiet! SilentWings ... OK
1 x Heat conductive pad fo... OK


You shuold buy 2 of these to control your coolanttemperature

greetings