MSI Pro B650M-B
MSI Pro B650M-B Specifications Review
MSI Pro B650M-B by MSI is a Micro-ATX form factor motherboard based on the mid-range B650M chipset and AM5 socket, providing a balanced set of features and connectivity. It is designed to support DDR5 memory, with 2 slots, a maximum capacity of 128 GB, and an overclocking speed of up to 6800 MHz.
VRM Quality
The MSI Pro B650M-B has a basic VRM configuration, delivering 55 A across 7 phases. Best for low-power CPUs (≤65 W TDP). Using high-wattage chips or overclocking could cause severe thermal issues and instability. Recommended for budget builds, office workstations, and media PCs.
See the VRM Appropriate CPU Specification Table at the bottom of this page for recommended CPU options.
Expansion and Storage Overview
The MSI Pro B650M-B offers a simplified expansion and storage configuration with PCIe 4.0 support, meaning it uses PCI Express 4.0, fast enough for modern GPUs and high-speed NVMe SSDs. It also includes 1 x16 slot , and 1 x1 slot. These PCIe slots are used to connect expansion cards — with the x16 slots typically reserved for graphics cards, while x8, x4, and x1 slots are used for devices like capture cards, sound cards, or network adapters.
For storage, this motherboard provides 1 M.2 slot and 4 SATA ports. M.2 slots are high-speed connectors for modern NVMe SSDs, which are much faster than older storage, while SATA ports are used for traditional hard drives and 2.5-inch SSDs. Together, they allow you to mix fast primary storage with larger, more affordable drives for bulk data.
Connectivity Overview
This motherboard has essential connectivity features with wired Realtek® 8125BG 2.5G Ethernet . USB connectivity covers basic needs. Please refer to the specification table for details.
For video output, this motherboard includes HDMI version 2.1 , DisplayPort version 1.4 . These video outputs are intended for integrated graphics and will only function if your CPU includes integrated GPU capabilities.
Audio Quality
The motherboard includes a standard audio chipset (Realtek® ALC897 Codec) that covers basic needs for casual listening. While adequate for everyday use with mainstream headphones or desktop speakers, discerning users may want to add a USB DAC or sound card for improved fidelity, especially for music production or high-end headphones.
Overall Quality and Value
MSI Pro B650M-B is basic and functional, carrying an overall quality score of 40.40. It is designed for budget-conscious builds or office setups where advanced features are not required, handling standard tasks effectively but lacking the polish or expandability of higher-tier models.
This motherboard has a solid 55.2% value efficiency, providing decent performance relative to its price. It represents a balanced option for users seeking fair capabilities without paying a premium.
General Information
| Manufacturer | MSI |
|---|---|
| Motherboard Name | MSI Pro B650M-B |
| Current Price Amazon | $139❗N/A |
| Amazon Price Updated | 4 months, 3 weeks ago. |
| Motherboard Available | False |
| Chipset / Socket | B650M / AM5 |
| Form Factor | Micro-ATX |
VRM Configuration
| CPU Power Phases (Amps) | 7 (55 A) |
|---|---|
| Power Design | 7+2+1 |
Memory Information
| Type / Slots | DDR5 / 2 slots |
|---|---|
| Max Capacity / Max OC | 128 GB / 6800 MHz |
PCIe Slot Configuration
| Supported Version | PCIe 4.0 | ||||
|---|---|---|---|---|---|
| Slot Size | Physical Slots | Gen4 | Gen3 |
|---|---|---|---|
| x16 | 1 | 1 | 0 |
| x1 | 1 | 0 | 1 |
Storage Configuration
| M.2 Slot Count | 1 slot |
|---|---|
| M.2 Supported Lengths | 2280, 2260 |
| SATA Ports | 4 |
Onboard Audio Features
| Audio Chipset | Realtek® ALC897 Codec |
|---|
Motherboard Display Outputs
| HDMI Output | HDMI - Version 2.1 (Max: 4K 60Hz) |
|---|---|
| DisplayPort Output | DisplayPort - Version 1.4 (Max: 4K 60Hz) |
USB and Thunderbolt Connectivity
Rear USB Ports
| USB 2.0 Type-A (480 Mbps) | 2 |
|---|---|
| USB 3.2 Gen 1 Type-A (5 Gbps) | 4 |
Front USB Ports
| USB 2.0 Type-A (480 Mbps) | 4 |
|---|---|
| USB 3.2 Gen 1 Type-A (5 Gbps) | 2 |
Internal USB Headers
| USB 2.0 Header (480 Mbps) | 4 |
|---|---|
| USB 3.2 Gen 1 Header (5 Gbps) | 2 |
Networking Information
| Ethernet | Chipset: Realtek® 8125BG 2.5G LAN Ports: 1 |
|---|---|
| Wi-Fi |
Module: Not Included |
| Bluetooth | Supported: No |
Quality & Features
Additional Information
| RAM | Supports un-buffered memory. Supports AMD EXPO. Max overclocking frequency depends on DIMM configuration: 1DPC 1R up to 6800+ MHz, 1DPC 2R up to 6000+ MHz. The base JEDEC speed is 4800 MHz. |
|---|---|
| Display | Also includes 1x VGA port with a maximum resolution of 2048x1536 50Hz, 2048x1280 60Hz, or 1920x1200 60Hz. Video outputs are available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed. |
| Expansion | PCI_E1 Gen PCIe 4.0 supports up to x16 (From CPU). It supports x16 for Ryzen™ 9000/ 7000 Series processors, x8 for Ryzen™ 8700/ 8600/ 8400 Series processors, and x4 for Ryzen™ 8500/ 8300 Series processors. PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset). |
| Storage |
M.2 Slot Details:
|
| Audio | 7.1-Channel High Definition Audio |
| Dimensions | 24.4 cm x 24.4 cm |
Note: The specifications and descriptions above are extracted by AI to present the official manufacturer data in a clearer and more natural way for easier understanding. However, this AI-processed information may contain inaccuracies. Please verify all details by consulting the official manufacturer's information provided below.
MSI Pro B650M-B Compared to Motherboards with Similar Performance and Features
Motherboard Quality & Features per Price Table
| Motherboard (Desc) | Price (Desc) | Overall_Q (Desc) | VRM_Q (Desc) | Chipset (Desc) | Exp_Str (Desc) | Connect (Desc) | Audio (Desc) | Q&F/Price (Desc) |
|---|---|---|---|---|---|---|---|---|
|
$170
|
0.0%
|
44.4%
|
24.0%
|
68.0%
|
34.0%
|
56.0%
|
40.0%
|
49.6%
|
|
|
$130
|
0.0%
|
43.6%
|
22.0%
|
71.0%
|
51.0%
|
34.0%
|
40.0%
|
63.7%
|
|
|
$120
|
0.0%
|
42.6%
|
14.0%
|
74.0%
|
51.0%
|
34.0%
|
40.0%
|
67.5%
|
|
|
$166
|
↑
4.4%
|
42.2%
|
14.0%
|
65.0%
|
55.0%
|
32.0%
|
45.0%
|
48.2%
|
|
|
$139❗
|
↓
-2.2%
|
40.4%
|
20.0%
|
71.0%
|
37.0%
|
34.0%
|
40.0%
|
55.2%
|
|
|
$240❗
|
0.0%
|
40.2%
|
24.0%
|
40.0%
|
45.0%
|
44.0%
|
48.0%
|
31.8%
|
|
|
$0
|
0.0%
|
38.4%
|
16.0%
|
42.0%
|
54.0%
|
35.0%
|
45.0%
|
N/A | |
|
$236❗
|
↓
-39.3%
|
36.6%
|
24.0%
|
34.0%
|
34.0%
|
51.0%
|
40.0%
|
29.5%
|
|
|
$99
|
↓
-16.1%
|
35.6%
|
17.0%
|
31.0%
|
37.0%
|
50.0%
|
43.0%
|
68.3%
|
Motherboard Comparison and Detail Specifications Table
| Specification |
No image available |
Perf Chart | |||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Price |
$170
|
0.0%
|
$130
|
0.0%
|
$120
|
0.0%
|
$166
|
↑
4.4%
|
$139❗
|
↓
-2.2%
|
$240❗
|
0.0%
|
$0
|
0.0%
|
$236❗
|
↓
-39.3%
|
$99
|
↓
-16.1%
|
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| Manufacturer | ASRock | MSI | GIGABYTE | Gigabyte | MSI | parts-quick | ASUS | CJWDPDSWEZ | MSI | ||||||||||||||||||||||||||||||||||||||||||
| Chip/Socket | B650I / AM5 | AMD B840 / AM5 | B650M / AM5 | AMD B840 / AM5 | B650M / AM5 | A620M / AM5 | A620M / AM5 | A620I / AM5 | A620M / AM5 | ||||||||||||||||||||||||||||||||||||||||||
| Form | Mini-ITX | Micro-ATX | Micro-ATX | Micro-ATX | Micro-ATX | Micro-ATX | Micro-ATX | Mini-ITX | Micro-ATX | ||||||||||||||||||||||||||||||||||||||||||
| CPU Phases | 8 (60 A) | 7 (60 A) | 5 (60 A) | 5 (60 A) | 7 (55 A) | 8 (60 A) | 6 (50 A) | 8 (60 A) | 6 (55 A) | ||||||||||||||||||||||||||||||||||||||||||
| PWR Design | 8+2+1 | 7 + 2 +1 | 5+2+2 | 5+2+2 | 7+2+1 | 8+2+1 | 6+1+1 | 8+2+1 | 6+1+1 | ||||||||||||||||||||||||||||||||||||||||||
| Mem Slots | 2 / DDR5 | 2 / DDR5 | 4 / DDR5 | 2 / DDR5 | 2 / DDR5 | 4 / DDR5 | 4 / DDR5 | 2 / DDR5 | 2 / DDR5 | ||||||||||||||||||||||||||||||||||||||||||
| Max Mem | 128 GB / 7200 MHz | 128 GB / 8000 MHz | 256 GB / 8000 MHz | 128 GB / 7600 MHz | 128 GB / 6800 MHz | 256 GB / 8000 MHz | 192 GB / 7600 MHz | 128 GB / 7200 MHz | 128 GB / 6800 MHz | ||||||||||||||||||||||||||||||||||||||||||
| PCIe | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | ||||||||||||||||||||||||||||||||||||||||||
| PCIe Slots | 1x16 Gen4 | 1x16 Gen4 | 1x1 Gen3 | 1x16 Gen4 | 1x1 Gen3 | 1x16 Gen4 | 1x16 Gen3 | 1x16 Gen4 | 1x1 Gen3 | 1x16 Gen4 | 1x1 Gen3 | 1x16 Gen4 | 2x1 Gen3 | 1x16 Gen4 | 1x16 Gen4 | 1x1 Gen3 | ||||||||||||||||||||||||||||||||||||||||||
| M.2 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | ||||||||||||||||||||||||||||||||||||||||||
| SATA | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | ||||||||||||||||||||||||||||||||||||||||||
| Audio | Realtek ALC897 | Realtek ALC897 | Realtek® Audio CODEC | Realtek® ALC892/ALC897 | Realtek® ALC897 Codec | Realtek® ALC892/ALC897 | Realtek® ALC892/ALC897 | Realtek ALC897 Audio Codec | Realtek® ALC897 Codec | ||||||||||||||||||||||||||||||||||||||||||
| S/PDIF | ❌ | ❌ | ❌ | ❌ | ❌ | ✔️ | ❌ | ❌ | ✔️ | ||||||||||||||||||||||||||||||||||||||||||
| HDMI | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ||||||||||||||||||||||||||||||||||||||||||
| DP | ❌ | ❌ | ✔️ (1.4) | ❌ | ✔️ (1.4) | ✔️ (1.4) | ✔️ (1.4) | ❌ | ❌ | ||||||||||||||||||||||||||||||||||||||||||
| LAN | 2.5 Gigabit LAN 10/100/1… (1 ports) | Realtek ® 8125D 2.5G LAN (1 ports) | Realtek® 2.5GbE LAN chip… (1 ports) | Realtek® 2.5GbE LAN chip… (1 ports) | Realtek® 8125BG 2.5G (1 ports) | Realtek® GbE LAN chip (1… (1 ports) | 1 x Realtek 1Gb Ethernet (2 ports) | 2.5 Gigabit LAN 10/100/1… (1 ports) | Realtek® RTL8111H Gigabi… (1 ports) | ||||||||||||||||||||||||||||||||||||||||||
| Wi-Fi | Wi-Fi Wi-Fi 6E | ❌ | ❌ | ❌ | ❌ | Wi-Fi Wi-Fi 6E | ❌ | Wi-Fi Wi-Fi 6E | ❌ | ||||||||||||||||||||||||||||||||||||||||||
| BT | v5.2 | ❌ | ❌ | ❌ | ❌ | v5.2 | ❌ | v5.2 | ❌ | Rear USB |
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| USB Headers |
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| Front USB |
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❌ |
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VRM Appropriate CPU Specification Table
| CPU | Price | App_Performance | Game_Performance | TDP/Max | C/SC/T | L2/L3 Cache | Base/Boost | Code Name | GPU |
|---|---|---|---|---|---|---|---|---|---|
|
$266
|
0.0%
|
45.2%
|
63.7%
|
65 W / 61 W | 8 / 0 / 16 | 1024.0 kB / 16.0 MB | 4.20 GHz / 5.10 GHz | Phoenix | Radeon 780M | |
|
$180
|
↓
-14.3%
|
45.1%
|
63.5%
|
65 W / 61 W | 8 / 0 / 16 | 1024.0 kB / 16.0 MB | 4.10 GHz / 5.00 GHz | Phoenix | None | |
|
$188
|
0.0%
|
35.8%
|
63.7%
|
65 W / 61 W | 6 / 0 / 12 | 1024.0 kB / 16.0 MB | 4.30 GHz / 5.00 GHz | Phoenix | Radeon 760M | |
|
$149
|
0.0%
|
34.7%
|
62.3%
|
65 W / 61 W | 6 / 0 / 12 | 1024.0 kB / 16.0 MB | 4.20 GHz / 4.70 GHz | Phoenix | None | |
|
$149
|
0.0%
|
31.3%
|
57.3%
|
65 W / 61 W | 6 / 0 / 12 | 1024.0 kB / 16.0 MB | 3.50 GHz / 5.00 GHz | Phoenix2 | Radeon 740M |
Official Manufacturer Data
Memory:
Memory Support DDR5 6800+(OC)/ 6600(OC)/ 6400(OC)/ 6200(OC)/ 6000(OC)/ 5800(OC)/ 5600(OC)/ 5400(OC)/ 5200(OC)/ 5000(OC)/ 4800(JEDEC) MHz
Max. overclocking frequency:
• 1DPC 1R Max speed up to 6800+ MHz
• 1DPC 2R Max speed up to 6000+ MHz
Supports Dual-Channel mode
Supports non-ECC, un-buffered memory
Supports AMD EXPO
Graphics:
Support HDMITM 2.1, maximum resolution of 4K 60Hz*
1x VGA
Support VGA, maximum resolution of 2048x1536 50Hz, 2048x1280 60Hz, 1920x1200 60Hz
*Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.
Storage:
M.2_1 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
4x SATA 6G
Expansion Slots:
• Supports x16 (For Ryzen™ 9000/ 7000 Series processors)
• Supports x8 (For Ryzen™ 8700/ 8600/ 8400 Series processors)
• Supports x4 (For Ryzen™ 8500/ 8300 Series processors)
1x PCI-E x1 slot
PCI_E1 Gen PCIe 4.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset)
USB:
4x USB 2.0 (Front)
4x USB 5Gbps Type A (Rear)
2x USB 5Gbps Type A (Front)
Internal I/O:
1x Power Connector(CPU_PWR)
1x CPU Fan
2x System Fan
2x Front Panel (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
1x Com Port (JCOM)
1x Addressable V2 RGB LED connector (JARGB_V2)
1x RGB LED connector(JRGB)
1x TPM pin header(Support TPM 2.0)
4x USB 2.0 ports
2x USB 5Gbps Type A ports
Back Panel I/O:
VGA
Keyboard/Mouse
USB 3.2 Gen 1 5Gbps (Type-A)
LAN port
Audio connectors
USB 2.0
Audio:
7.1-Channel High Definition Audio
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