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Motherboards
Motherboards on AMD B840 chipset
prices
on 5 models
AMD B840
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highest to lowest price
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by date of addition
Power phases
Height
Width
DDR4 (slot(s))
DDR5 (slot(s))
more parameters…
Max. clock frequency (MHz)
Max. memory (GB)
SATA 3 (6Gbps)
MSATA
M.2 connector
M.2 version
U.2 connector
ESATA connector
SAS connector
Included drive size (GB)
PCI-E slots
1x PCI-E slots
PCI-E 4x slots
PCI-E 8x slots
PCI-E 16x slots
PCI Express
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USB4
Thunderbolt AIC connector
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USB A
USB 2.0
USB 3.2 gen1
USB 3.2 gen2
USB C
USB C 3.2 gen1
USB C 3.2 gen2
USB C 3.2 gen2x2
USB4 (pcs)
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Fan power connectors
CPU Fan 4-pin
CPU/Water Pump Fan 4-pin
Chassis/Water Pump Fan 4-pin
by rating
Asus PRIME B840M-A-CSM
compare
Asus PRIME B840M-A-CSM
New
Prime
M.2 cooling
no backlight
2.5 Gbps
Form Factor:
micro-ATX
Socket:
AMD AM5
Chipset:
AMD B840
Memory slots:
4 х DDR5, 7600 MHz
Connectors:
HDMI, DisplayPort, M.2
Expansion:
PCI-E 16x - 3
Photos
8
0 store 0 offers
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Asus PRIME B840-PLUS WIFI
compare
Asus PRIME B840-PLUS WIFI
New
Prime
Wi-Fi
M.2 cooling
no backlight
2.5 Gbps
Form Factor:
ATX
Socket:
AMD AM5
Chipset:
AMD B840
Memory slots:
4 х DDR5, 7600 MHz
Connectors:
HDMI, DisplayPort, M.2
Expansion:
PCI-E 1x - 1, PCI-E 16x - 4
Photos
9
0 store 0 offers
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Asus PRIME B840M-A WIFI
compare
Asus PRIME B840M-A WIFI
New
Prime
Wi-Fi
M.2 cooling
no backlight
2.5 Gbps
Form Factor:
micro-ATX
Socket:
AMD AM5
Chipset:
AMD B840
Memory slots:
4 х DDR5, 7600 MHz
Connectors:
HDMI, DisplayPort, M.2
Expansion:
PCI-E 16x - 3
Photos
9
0 store 0 offers
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Gigabyte B840M AORUS ELITE WIFI6E
compare
Gigabyte B840M AORUS ELITE WIFI6E
New
Aorus
Wi-Fi
M.2 cooling
backlight
2.5 Gbps
Form Factor:
micro-ATX
Socket:
AMD AM5
Chipset:
AMD B840
Memory slots:
4 х DDR5, 8200 MHz
Connectors:
HDMI, DisplayPort, M.2
Expansion:
PCI-E 16x - 2
Photos
7
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Gigabyte B840M EAGLE WIFI6
compare
Gigabyte B840M EAGLE WIFI6
New
Eagle
Wi-Fi
M.2 cooling
no backlight
2.5 Gbps
Form Factor:
micro-ATX
Socket:
AMD AM5
Chipset:
AMD B840
Memory slots:
2 х DDR5, 7200 MHz
Connectors:
HDMI, DisplayPort, M.2
Expansion:
PCI-E 16x - 2
Photos
5
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AMD AM4
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AMD chipsets
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AMD B840
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RAM type and slots
DDR4 (2)
DDR4 (4)
DDR4 (≥ 6)
DDR5 (2)
DDR5 (4)
Max. RAM
≤ 32 GB
64 GB
96 GB
128 GB
192 GB
> 192 GB
Max. RAM speed
< 3000 MHz
3000 – 3999 MHz
4000 – 4999 MHz
5000 – 5999 MHz
6000 – 6999 MHz
≥ 7000 MHz
Drive interface
SATA 3
M.2
≥ 2 M.2 (PCI-E)
NVMe
M.2 PCI-E 5.0 support
SATA 3 connectors
< 4
4
6
≥ 8
M.2 connectors
1
2
3
≥ 4
Connections (on board)
PCI-E 16x ≥ 2
U.2
PCI slot(s)
USB 3.2 gen1
USB 3.2 gen2
USB-C 3.2 gen2
USB-C 3.2 gen2
USB-C 3.2 gen2x2
> 3 USB
Thunderbolt AIC
TPM
no TPM
> 3 fan power connectors
PCI-E 1x slots
1
2
3
≥ 4
Connections (rear panel)
USB 3.2 gen1
> 4 USB 3.2 gen1
USB 3.2 gen2
> 4 USB 3.2 gen2
USB C 3.2 gen1
USB C 3.2 gen2
USB C 3.2 gen2x2
USB4
HDMI
DVI
DisplayPort
VGA (D-Sub)
Thunderbolt 3
Thunderbolt 4
optical (audio)
COM port
PS/2
≥ 2 LAN
Features
video via USB-C (AltMode)
power supply via USB-C (Power Delivery)
Wi-Fi (all versions)
Wi-Fi 6 (802.11ax)
Wi-Fi 6E (802.11ax)
Wi-Fi 7 (802.11be)
Bluetooth (all versions)
Bluetooth v 5
BIOS FlashBack
Clear CMOS
POST encoder
Cooling
SSD M.2 cooling
active chipset cooling
VRM heatsink
heat pipe
liquid cooling
More features
CrossFire (AMD)
SLI (NVIDIA)
PCI Express 4.0
PCI Express 5.0
DualBIOS
RAID
XMP
EXPO
ECC
no backlight
backlight
built-in graphics card
built-in CPU
4-channel RAM
steel PCI-E connectors
metal backplate
external PSU powered
reverse connector
Release year
new
2025
2024
earlier
roll up
more
Features
home / office
compact PCs
gaming
overclocking
HEDT (High-End DeskTop)
server
for mining
Sound card
Realtek ALC8xx
Realtek ALC11xx
Realtek ALC12xx
Realtek ALC40xx
Supreme FX
LAN controller
Realtek
Intel
Aquantia
Dragon
Killer
LAN speed
1 Gbps
2.5 Gbps
5 Gbps
10 Gbps
CPU power
2 pin
4 pin
8 pin
8+4 pin
8+8 pin
8+8+6 pin
no power
Power phases
≤ 7
8 – 9
10 – 11
12 – 13
14 – 15
≥ 16
Board width
compact micro-ATX
compact ATX
Clear parameters
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AMD B840
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