Hardware Spec Index

Halcyra MB-3903 Prime B860 E-ATX Wi-Fi 7 Motherboard

Motherboards · Halcyra · SKU MB3903-PRIME · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index4,165 (Motherboards scale)
Category rank#23,364
Street price$329
Power39 W
Performance per dollar12.66
Released2026

Specifications

BrandHalcyra
ModelHalcyra MB-3903 Prime
SocketLGA1851
ChipsetB860
Form factorE-ATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-9000+ (OC, CUDIMM)
Primary x16 slotPCIe 5.0 x16
M.2 slots3 total, 1× PCIe 5.0 x4
Rear USB-C1× USB 3.2 Gen 2x2 20Gbps (Type-C)
Ethernet2.5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingMemory only
VRM18+2+1 phases, 90 A stages
BIOSDual UEFI, BIOS flashback button

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysIntel LGA1851 SocketIntel 800 Series ChipsetsDDR5 Memory ExplainedPCIe 5.0 Explained

Similar Motherboards

ModelBenchmarkPriceCompare
Zephyra MB-8409 Edge X570 ATX Wi-Fi 6 Motherboard5,586$609Compare
Orbita MB-1671 Ultra H810 Mini-ITX Motherboard1,828$79Compare
Kyndral MB-3682 Edge B550 E-ATX Motherboard1,541$69Compare
Kyndral MB-2356 Plus B650E ATX Wi-Fi 7 Motherboard4,479$489Compare
Kyndral MB-4818 Ultra X570 Micro-ATX Motherboard2,698$139Compare
Orbita MB-4111 XT X570 ATX Wi-Fi 6 Motherboard4,541$389Compare

All Motherboards · JSON

Cite this page: Hardware Spec Index, “Halcyra MB-3903 Prime B860 E-ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/461773 (accessed 2026-10-21).