MSI B660-A PRO DDR4 User Manual

25

Important
 The JRGB connector supports up to 2 meters continuous 5050 RGB LED strips
(12V/G/R/B) with the maximum power rating of 3A (12V).
 Always turn off the power supply and unplug the power cord from the power outlet
before installing or removing the RGB LED strip.
 Please use MSI’s software to control the extended LED strip.
JRGB1: RGB LED connector
The JRGB connector allows you to connect the 5050 RGB LED strips 12V.
Pin Signal Name Pin Signal Name
1 +12V 2 G
3 R 4 B
1

CAUTION
Do not connect the wrong type of LED strips. The JRGB connector and the JRAINBOW
connector provide different voltages, and connecting the 5V LED strip to the JRGB
connector will result in damage to the LED strip.

Important
 The JRAINBOW connector supports up to 75 LEDs WS2812B Individually
Addressable RGB LED strips (5V/Data/Ground) with the maximum power rating of
3A (5V). In the case of 20% brightness, the connector supports up to 200 LEDs.
 Always turn off the power supply and unplug the power cord from the power outlet
before installing or removing the RGB LED strip.
 Please use MSI’s software to control the extended LED strip.
JRAINBOW1~2: Addressable RGB LED connectors
The JRAINBOW connectors allow you to connect the WS2812B Individually
Addressable RGB LED strips 5V.
Pin Signal Name Pin Signal Name
1 +5V 2 Data
3 No Pin 4 Ground
1

MSI B660-A PRO DDR4 Specifications

General

Chipset	Intel B660
Memory Type	DDR4
Form Factor	ATX
Socket	LGA 1700
Memory Slots	4
Maximum Memory	128 GB
PCIe x1 Slots	2
M.2 Slots	2
SATA Ports	6
Audio	Realtek ALC897
RAID Support	RAID 0, 1, 5, 10
USB Ports	USB 3.2 Gen 2x2 (1), USB 3.2 Gen 2 (1), USB 3.2 Gen 1 (2), USB 2.0 (2)