Gigabyte B550M DS3H AC (rev. 1.5/1.6) AMD B550 Socket AM4 micro ATX
Product Technical Specification
Processor | |
Processor manufacturer | AMD |
Processor socket | Socket AM4 |
Compatible processor series | AMD Ryzen 5 3rd Gen,AMD Ryzen 5 5th Gen,AMD Ryzen 7 5th Gen,AMD Ryzen 9 5th Gen |
Memory | |
Supported memory types | DDR4-SDRAM |
Number of memory slots | 4 |
Memory channels | Dual-channel |
ECC | Yes |
Non-ECC | Yes |
Supported memory clock speed (max) | 4733 |
Maximum internal memory | 128 |
Unbuffered memory | Yes |
Storage controllers | |
Supported storage drive interfaces | M.2,SATA III |
RAID support | Yes |
RAID levels | 0,1,10 |
Internal I/O | |
USB 2.0 connectors | 2 |
USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
Number of SATA III connectors | 4 |
Front panel audio connector | Yes |
Front panel connector | Yes |
ATX Power connector (24-pin) | Yes |
Power fan connector | Yes |
CPU fan connector | Yes |
TPM connector | Yes |
12V power connector | Yes |
Rear panel I/O ports | |
USB 2.0 ports quantity | 4 |
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
Ethernet LAN (RJ-45) ports | 1 |
PS/2 ports quantity | 1 |
HDMI ports quantity | 1 |
HDMI version | 2.1 |
DVI-D ports quantity | 1 |
DisplayPorts quantity | 1 |
Digital audio optical out | 3 |
Network | |
Ethernet LAN | Yes |
Ethernet interface type | Gigabit Ethernet |
Wi-Fi | Yes |
Top Wi-Fi standard | Wi-Fi 5 (802.11ac) |
WLAN controller model | Realtek RTL8821CE |
Bluetooth | Yes |
Bluetooth version | 4.2 |
Features | |
Motherboard chipset | AMD B550 |
Audio output channels | 7.1 |
PC health monitoring | FAN,Temperature,Voltage |
Component for | PC |
Motherboard form factor | Micro ATX |
Motherboard chipset family | AMD |
Windows operating systems supported | Windows 10 x64,Windows 11 x64 |
Expansion slots | |
PCI Express x1 slots | 1 |
PCI Express x1 (Gen 3.x) slots | 1 |
PCI Express x16 slots | 1 |
PCI Express x16 (Gen 4.x) slots | 1 |
Number of M.2 (M) slots | 1 |
BIOS | |
BIOS type | UEFI AMI |
BIOS memory size | 128 |
Clear CMOS jumper | Yes |
Weight & dimensions | |
Width | 244 |
Depth | 244 |
Delivery Options

Economy Delivery (UK)

Fast & Tracked by Courier (UK)
GIGABYTE B550 motherboards maximize your PC's potential with AMD StoreMI technology. StoreMI accelerates traditional storage devices to reduce boot times and enhance the overall user experience. This easy-to-use utility combines the speed of SSDs with the high capacity of HDDs into a single drive, enhances the read/write speeds of the device to match that of SSDs, bolsters data performance for incredible value, and transforms the everyday PC to a performance driven system.
The benefits of AMD StoreMI:
• Making the PC experience fast, smooth and easy
• Optimizing computer responsiveness from system boot to application launch
• Offering SSD performance with HDD capacity at an affordable cost
• Quickly accessing key files by automatically learning users' computing behaviors
PERFORMANCE
GIGABYTE UD series motherboards use a 5+3 phases pure digital PWM + Low RDS(on) MOSFETs design to support the 3rd Gen AMD Ryzen CPUs by offering incredible precision in delivering power to the motherboard's most power-hungry and energy-sensitive components as well as delivering enhanced system performance and ultimate hardware scalability.
Benefits of Low RDS(on) MOSFETs
‧ Optimized gate charge to minimize switching losses.
‧ Lower temperature, smaller size, better thermal characteristics.
1.PCIe 4.0 Slot
PCIe 4.0 x16 slot with faster bandwidth and lower impedance.
2.M.2 PCIe 4.0 Slot
M.2 PCIe 4.0 x4 slot with Lower impedance.
Faster and Better Coverage with Dual Band 802.11ac WIFI + BT Support Module
The onboard 802.11ac WIFI module supports Dual Band and up to 433 Mbps, 3x faster WIFI speed than 802.11n and also support BLUETOOTH features.
Dual NVMe PCIe 4.0/3.0 M.2 Connectors
With dual NVMe PCIe 4.0*/3.0 M.2 connectors onboard, GIGABYTE Motherboards bring users to experience NVMe mode or SATA mode connectivity for M.2 SSD devices. Delivering up to 64 Gb/s data transfer speed, the dual M.2 connectors design provides an ideal storage solution while also supporting in RAID modes.
Realtek GbE LAN with Bandwidth Management
Realtek Gigabit LAN features a network bandwidth management application which helps to improve network latency and maintain low ping times to deliver better responsiveness in crowded LAN environments.
HDMI 2.1 for 4K / 60P / 21:9 / HDCP 2.3 Support
HDMI 2.1, which is backwards compatible with HDMI 2.0/ 1.4 and offering 48 Gb/s of bandwidth – twice times more than previous generation. This unlocks the potential for users to transfer multiple video streams, as well as a native cinematic 21:9 ratio (which most movies are shot in), Full HDR and HDCP 2.3 support, to offer the best visual experience for viewers.
Smart Fan 5
With Smart Fan 5 users can ensure that their gaming PC can maintain its performance while staying cool. Smart Fan 5 allows users to interchange their fan headers to reflect different thermal sensors at different locations on the motherboard. Not only that, with Smart Fan 5 more hybrid fan headers that support both PWM and Voltage mode fans have been introduced to make the motherboard more liquid cooling friendly.
High-End Audio Capacitors
GIGABYTE motherboards use high-end audio capacitors. These high quality capacitors help deliver high resolution and high fidelity audio to provide the most realistic sound effects for gamers.
Audio Noise Guard
GIGABYTE motherboards feature an audio noise guard that essentially separates the board’s sensitive analog audio components from potential noise pollution at the PCB level.
Solid Pin Power Connectors
B550 motherboards feature solid plated ATX 12V 8pin power connectors for offering stable power supply while CPU overloading.
START SULFURIZATION PROTECTION
Sulfur compounds in the air can penetrate tiny onboard resistors creating chemical change and causing these resistors to open or short. If either of these occurs the motherboard will fail to function. By equipping resistors with an Anti-Sulfur Design GIGABYTE gives Ultra Durable Motherboards a whole new meaning.
Refreshed BIOS
The BIOS is essential for users during initial setup to allow for the most optimal settings. With a new GUI and easier to use functionalities, GIGABYTE has been able to reinvent the BIOS to give users a better experience while setting up their new system.
Processor | |
Processor manufacturer | AMD |
Processor socket | Socket AM4 |
Compatible processor series | AMD Ryzen 5 3rd Gen,AMD Ryzen 5 5th Gen,AMD Ryzen 7 5th Gen,AMD Ryzen 9 5th Gen |
Memory | |
Supported memory types | DDR4-SDRAM |
Number of memory slots | 4 |
Memory channels | Dual-channel |
ECC | Yes |
Non-ECC | Yes |
Supported memory clock speed (max) | 4733 |
Maximum internal memory | 128 |
Unbuffered memory | Yes |
Storage controllers | |
Supported storage drive interfaces | M.2,SATA III |
RAID support | Yes |
RAID levels | 0,1,10 |
Internal I/O | |
USB 2.0 connectors | 2 |
USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
Number of SATA III connectors | 4 |
Front panel audio connector | Yes |
Front panel connector | Yes |
ATX Power connector (24-pin) | Yes |
Power fan connector | Yes |
CPU fan connector | Yes |
TPM connector | Yes |
12V power connector | Yes |
Rear panel I/O ports | |
USB 2.0 ports quantity | 4 |
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
Ethernet LAN (RJ-45) ports | 1 |
PS/2 ports quantity | 1 |
HDMI ports quantity | 1 |
HDMI version | 2.1 |
DVI-D ports quantity | 1 |
DisplayPorts quantity | 1 |
Digital audio optical out | 3 |
Network | |
Ethernet LAN | Yes |
Ethernet interface type | Gigabit Ethernet |
Wi-Fi | Yes |
Top Wi-Fi standard | Wi-Fi 5 (802.11ac) |
WLAN controller model | Realtek RTL8821CE |
Bluetooth | Yes |
Bluetooth version | 4.2 |
Features | |
Motherboard chipset | AMD B550 |
Audio output channels | 7.1 |
PC health monitoring | FAN,Temperature,Voltage |
Component for | PC |
Motherboard form factor | Micro ATX |
Motherboard chipset family | AMD |
Windows operating systems supported | Windows 10 x64,Windows 11 x64 |
Expansion slots | |
PCI Express x1 slots | 1 |
PCI Express x1 (Gen 3.x) slots | 1 |
PCI Express x16 slots | 1 |
PCI Express x16 (Gen 4.x) slots | 1 |
Number of M.2 (M) slots | 1 |
BIOS | |
BIOS type | UEFI AMI |
BIOS memory size | 128 |
Clear CMOS jumper | Yes |
Weight & dimensions | |
Width | 244 |
Depth | 244 |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a very flexible and hassle free returns policy. If
for whatever reason you are not happy with the item purchased you can return
it to us within 12months for a refund (for unused and unopened
items) or within 30 days on opened and used items for a refund. This
applies to items purchased direct through Buykingston only.
Our 30 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items opened and used and that are returned in a resellable
condition.
Our 365 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items that remain sealed and unused.
Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;
- Headphones
- Earphones
- Custom made and designed products such as flash memory products with
custom logo’s on them. E,g USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on
non tracked items.
On unopened items 365 days.
How do i go about returning my order?
Please contact us via our contact page with
your order number where we will present you with an RMA number and returns
label.
Do i need to contact you before returning my order?
Yes, to obtain an RMA number.
Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365
day returns. Of course for faulty items we realise you may no longer have
the packaging.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
direct for assistance.
Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.