Controllers will be wired for the power connection you choose and have sleeving for the cable...  you can choose sata power connector or 4 pin molex.
 
Standard 12 volt  controller
This product has powerful functions and small size. You can easily change mode, speed, color and brightness by pressing 3 keys on its ultra slim body. It's the best mate for your LED strips. Also This is wire to a 4 pin Molex  so you can connect it to your PSU and comes with a 4 pin male adapter.
 
Mini Controller Dimmer for 5050 3528 RGB LED Strip Light 12V 6A 3 Keys White
Features:
Easy to accomplish dim and speed adjustment.
Owns many kinds of modes, such as static colors, jumpy changes, gradual changes, strobe, auto-play modes, etc.
It presents 19 dynamic modes and 20 static color.
Powerful functions and small size, convenient to use.
3 keys design.
Auto memorizing funtion.
Key functions:
key functions
MODE Dynamic modes switch
SPEED/BRIGHT To adjust the speed(dynamic modes) or brightness(static modes)
COLOR Static color replacement
Mode Table
NO. mode                                                         NO. mode
1 Full color gradual change                                11 Six color jumpy change
2 Three-color fade in then fade out                   12 3-color strobe change
3 Seven-color fade in then fade out                   13 Red flash explosion
4 Red fade in then fade out                               14 Yellow flash explosion
5 Yellow fade in then fade out                           15 Green flash explosion
6 Green fade in then fade out                            16 Blue flash explosion
7 Cyan fade in then fade out                              17 White flash explosion
8 Blue fade in then fade out                               18 Six color flash explosion
9 White fade in then fade out                            19 AutoPlay
10 Three colors jumpy change
Color Table
NO. Color                                                         NO. Color
1 Static red                                                      11 Static light blue
2 Static green                                                  12 Static cyan
3 Static blue                                                    13 Static light green
4 Static orange                                                 14 Static yellowish green
5 Static deep yellow                                         15 Static yellow-green
6 Static pink                                                    16 Static white
7 Static purple                                                 17 Static green white
8 Static brown                                                  18 Static ivory
9 Static violet blue                                            19 Static pink white
10 Static dark blue                                            20 Static warm white
Package includes:
 
5 volt addressable
 
 
76 kinds of patterns,which are vivid and beautiful;
Can control up to 2048 pixels;
 
Functions Of Keys:
MODE+
Switching patterns forwardly
 
SPEED
Switching speed
 
MODE-
Switching patterns backwardly
 
MODE+ and MODE-
Pressing MODE+ and MODE- at the same time and release at the same time into AUTO Mode
 
Parameters:
Operating Voltage:DC5V-24V