DDR5 MOBO, not DDR4 in the title?!

it is DDR5. Look up the maufacturer's website Memory support list and you will find all compatible ram.

how many rgb headers does this mb have?

The numbers of all the headers are listed in the specs

Questions & Answers: ASRock B650M PG RIPTIDE AM5 Micro-ATX Motherboard, 4 slots DDR5, 2 PCIe 4.0 x16, HDMI 2.1 Port, 2.5Gb LAN, Dual M.2 Slots, 7.1 Nahimic Audio, USB3.2 Gen2 Type-C, 12+2+1 Power Phase, AMD CrossFire

(19)

double click image to zoom in

Shop All ASRock Products

ASRock B650M PG RIPTIDE AM5 Micro-ATX Motherboard, 4 slots DDR5, 2 PCIe 4.0 x16, HDMI 2.1 Port, 2.5Gb LAN, Dual M.2 Slots, 7.1 Nahimic Audio, USB3.2 Gen2 Type-C, 12+2+1 Power Phase, AMD CrossFire

AMD B650.
Supports AMD Socket AM5 Ryzen™ 7000 Series Processors.
12+2+1 Power Phase, Dr.MOS with Enlarged Heatsink Armor.
Supports DDR5 6200MHz (OC).
2 PCIe 4.0 x16, 2 PCIe 3.0 x1.
Graphics Output Options: HDMI, DisplayPort.
Realtek ALC897 7.1 CH HD Audio Codec, Nahimic Audio.
4 SATA3, 1 Blazing M.2 (PCIe Gen5x4): 1 Hyper M.2 (PCIe Gen4x4).
2 Rear USB 3.2 Gen2 (Type A + Type-C): 1 USB 3.2 Front Gen1 Type-C, 6 USB 3.2 Gen1 (2 Rear, 4 Front), 8 USB 2.0 (4 Rear, 4 Front).
Dragon 2.5G LAN.
Supports ASRock Auto Driver Installer, BIOS Flashback, Lightning Gaming Ports.

Out of Stock