Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
ASRock B850 Pro RS AMD AM5 Socket Motherboard, ATX, 4x DDR5 Slots, 4x M.2 Sockets, 3x USB-C Port, Fitted I/O Shield, 2.5GbE LAN, 1x HDMI Port / 1x USB-CASRock B850 PRO RS Key Features Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors 14+2+1 Phase Power Design, 80A Dr. MOS for VCore+SOC+MISC 4 x DDR5 DIMMs Supports Dual Channel, up to 8000+ (OC) PCIe 5. 0 x16, 1 PCIe 4. 0 x16, 1 M. 2 Key E for WiFi Graphics Output Options: 1 HDMI, 1 USB Type C (DP alt) Realtek ALC897 7. 1 CH HD Audio Codec, Nahimic Audio 1 x Blazing M. 2 (PCIe Gen5x4) 2 x Hyper M. 2 (PCIe Gen4x4) 1 x Ultra M. 2 (PCIe
ASRock B850 PRO RSKey Features
Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors
14+2+1 Phase Power Design, 80A Dr.MOS for
VCore+SOC+MISC
4 x DDR5 DIMMs
Supports Dual Channel, up to 8000+ (OC)
PCIe 5.0 x16, 1 PCIe 4.0 x16, 1 M.2 Key E for WiFi
Graphics Output Options: 1 HDMI, 1 USB Type-C (DP-alt)
Realtek ALC897 7.1 CH HD Audio Codec, Nahimic Audio
1 x Blazing M.2 (PCIe Gen5x4)
2 x Hyper M.2 (PCIe Gen4x4)
1 x Ultra M.2 (PCIe Gen3x4)
4 x SATA3
1 x USB 3.2 Gen2x2 Type-C (Front)
1 x USB 3.2 Gen2 Type-C (Rear)
1 x USB 3.2 Gen1 Type-C (Rear)
8 x USB 3.2 Gen1 (4 Rear, 4 Front)
10 x USB 2.0 (6 Rear, 4 Front)
Realtek 2.5G LAN
Supports M.2 Bottom Heatsink,
BIOS Flashback
14 + 2 + 1 POWER PHASE DESIGN + DR.MOS
Vcore with Dr.MOS design, delivering smoother and neater power to the CPU.
BLAZING M.2 (PCIE GEN5 x4)
Supports up to 4 x NVMe M.2 SSDs and one of which is able to accommodates the latest PCI Express 5.0 standard.
USB TYPE-C (DP-ALT MODE)
USB Alternate Mode allows USB Type-C ports to enable both data transfer and display output to DisplayPort monitors through a single cable.
M.2 BOTTOM HEATSINK
Dissipate heat efficiently through the motherboard PCB, maximize performance while maintaining system stability.
FRONT USB 3.2 GEN2x2 TYPE-C
The latest USB 3.2 Gen2x2 Type-C delivers up to 20 Gbps data transfer rate which is 2x as fast as previous generation.
NAHIMIC AUDIO
Optimized to who is looking for an outstanding sound experience in high definition.
Specification
Platform
ATX Form Factor: 12.0 in x 9.6-in, 30.5 cm x 24.4 cm
8 Layer PCB
Unique Feature
Superb Productivity
PCIe Gen5 (Graphics, M.2)
Dual Channel DDR5
Rock-Solid Durability
14+2+1 Power Phase, 80A Dr.MOS for VCore+SOC+MISC with Enlarged Heatsink Armor
Flexible Integrated I/O Shield
Ultrafast Connectivity
2.5G LAN
EZ Update
BIOS Flashback Button
ASRock Auto Driver Installer
EZ Troubleshooter
ASRock Post Status Checker
CPU
Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors
Chipset
AMD B850
Memory
Dual Channel DDR5 Memory Technology
4 x DDR5 DIMM Slots
Supports DDR5 ECC/non-ECC, un-buffered memory up to 8000+(OC)
Max. capacity of system memory: 256GB
Supports Extreme Memory Profile (XMP) and EXTended Profiles for Overclocking (EXPO) memory modules
Expansion Slot
CPU:
1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode
Chipset:
1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode
1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module
PCIE1 will run at Gen5x16 with 9000 and 7000 series processors, Gen4x8 with 8000 (Phoenix 1) series processors and Gen4x4 with 8000 (Phoenix 2) series processors.
If M2_3 is occupied, PCIE2 will be disabled.
Supports NVMe SSD as boot disks
15µ Gold Contact in VGA PCIe Slot (PCIE1)
Graphics
Integrated AMD RDNATM graphics (Actual support may vary by CPU)
1 x HDMI 2.1 TMDS/FRL 8G Compatible, supports HDR, HDCP 2.3 and max. resolution up to 4K 120Hz
1 x USB 3.2 Gen1 Type-C, supports DP 1.4 HBR3 and max. resolution up to 4K 60Hz (DP-alt mode supports DP1.4a)
Audio
7.1 CH HD Audio (Realtek ALC897 Audio Codec)
Nahimic Audio
LAN
2.5 Gigabit LAN 10/100/1000/2500 Mb/s
Dragon RTL8125BG
Supports Dragon 2.5G LAN Software
Smart Auto Adjust Bandwidth Control
Visual User Friendly UI
Visual Network Usage Statistics
Optimized Default Setting for Game, Browser, and Streaming Modes
User Customized Priority Control
USB
CPU:
1 x USB 3.2 Gen2 Type-C (Rear)
1 x USB 3.2 Gen1 Type-C (Rear)
2 x USB 3.2 Gen1 Type-A (Rear (USB32_1 and USB32_2))
Chipset:
1 x USB 3.2 Gen2x2 Type-C (Front)
6 x USB 3.2 Gen1 Type-A (2 Rear (USB32_3 and USB32_4), 4 Front)
10 x USB 2.0 (6 Rear, 4 Front)
All USB ports support ESD Protection
Rear Panel I/O
2 x Antenna Mounting Points
1 x HDMI Port
1 x USB 3.2 Gen2 Type-C Port (10 Gb/s)
1 x USB 3.2 Gen1 Type-C Port (DP-alt mode supports DP1.4a)
4 x USB 3.2 Gen1 Type-A Ports
6 x USB 2.0 Ports
1 x RJ-45 LAN Port
1 x BIOS Flashback Button
HD Audio Jacks: Line in / Front Speaker / Microphone
Storage
CPU:
1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode
1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode
Chipset:
1 x Hyper M.2 Socket (M2_3, Key M), supports type 2230/2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode
1 x Ultra M.2 Socket (M2_4, Key M), supports type 2280 PCIe Gen3x4 (32 Gb/s) mode
2 x SATA3 6.0 Gb/s Connectors
ASMedia ASM1061:
2 x SATA3 6.0 Gb/s Connectors
Supports NVMe SSD as boot disks
M2_1 is the first priority for M.2 installation.
M2_1 will run at Gen5x4 with 9000 and 7000 series processors and Gen4x4 with 8000 Phoenix 1 and Phoenix 2) series processors.
M2_2 will run at Gen4x4 with 9000 and 7000 series processors, Gen4x4 with 8000 (Phoenix 1) series processors and Gen4x2 with 8000 (Phoenix 2) series processors.
If M2_3 is occupied, PCIE2 will be disabled.
If SATA3_1 or SATA3_2 is occupied, M2_4 will downgrade to Gen3x2 mode.
RAID
Supports RAID 0 and RAID 1 for SATA storage devices
Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices
Connector
1 x SPI TPM Header
1 x Power LED and Speaker Header
1 x RGB LED Header
3 x Addressable LED Headers
2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)
4 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)
1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)
1 x 24 pin ATX Power Connector
2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
1 x Front Panel Audio Connector
2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
1 x Front Panel Type C USB 3.2 Gen2x2 Header (20 Gb/s)
Supports in total up to 12V/3A, 36W LED Strip
Support in total up to 5V/3A, 15W LED Strip
CPU_FAN1 supports the fan power up to 1A (12W).
CPU_FAN2, CHA_FAN1~4 and AIO_PUMP support the fan power up to 3A (36W).
CPU_FAN2, CHA_FAN1~4 and AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.
BIOS Feature
256Mb AMI UEFI Legal BIOS with GUI support
Software and UEFI
Software
ASRock Motherboard Utility (A-Tuning)
ASRock Dragon 2.5G LAN Software
ASRock Polychrome SYNC
UEFI
ASRock EZ Mode
ASRock Full HD UEFI
ASRock Auto Driver Installer
ASRock Instant Flash
OS
Microsoft Windows 10 64-bit / 11 64-bit
Certifications
FCC, CE
ErP/EuP ready (ErP/EuP ready power supply is required)
Accessories
2 x SATA Data Cables
1 x Screw for M.2 Socket
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 311 reviews
Sort
Product Reviews
★★★★★ 5
Works wonders
Size: M (up to size 9)-Beige
Works wonders for dry feet, like really dry, hard feet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
★★★★★ 4
EXCELLENT FEET MOISTURE PROTECTION
Size: S (up to size 7)-Beige, Size: S (up to size 7)-Beige
Why did you pick this product vs others?:
I have burns on my feet and needed something that I could put burn creme on and still walk around in with. I tried other silicone footsie but they would teae really easily. So far these are doing really well for this purpose. They are holding their shape too. The only caution I have is the same with all silicone footsies: They can be slippery on wet floors, so also wear with socks over them.
The biggest issues is when they say a size they mean it. The silicone used in these have little give in them, so they won't stretch out and loose their shape. That can be a good thing, or not so good, depending on how well they fit your feet and what your intent is with wearing these. The other issue is if they fit snug around those toes, that tends to be where the first tear in the material will happen. Because of how these are made, the tear is actually more like cracking in the material and once it occurs you won't be able to get much use out of the sock after that. If you are planning to wear them around the house or for long term use, I suggest going up a size or look for the toeless options.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2025
★★★★★ 3
Silicone socks
Size: M (up to size 9)-Beige
The socks are sized large. The quality of the silicone is good. But they slide around on your feet if you try to walk, making them difficult to use and a bit uncomfortable. Unless you are able to sit for long periods of time the likely will not work well. Recommend looking for a better value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 27, 2024
★★★★★ 5
Effective
Size: L (up to size 11)-Pink
Fantastic. I put lotion on my feet & wear them when I go to sleep. I often wake up during the night and will remove them to find my feet soft and smooth. They are strong and fit my size 10 womens’ size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
★★★★★ 1
The shoe size should be smaller 9 is the max and it is still to tight
Size: M (up to size 9)-Beige, Size: M (up to size 9)-Beige
Very tight had to take off my feet in the middle of the night they were cutting off my circulation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
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