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Description
ASRock B850M Pro-A WiFi AMD AM5 Socket Motherboard, Micro-ATX, 4x DDR5 Slots, 3x M.2 Sockets, 2x USB-C Port, 2.5GbE LAN, Wi-Fi 6E, 1x DisplayPort / 1x HDMI PortASRock B850M PRO RS WiFi Key Features Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors 8+2+1 Phase Power Design, Dr. MOS for VCore+SOC+MISC 4 x DDR5 DIMMs Supports Dual Channel, up to 8000+ (OC) 1 x PCIe 5. 0 x16, 1 x PCIe 4. 0 x4 Graphics Output Options: 1 x HDMI, 1 DisplayPort Realtek ALC897 7. 1 CH HD Audio Codec, Nahimic Audio 1 x Blazing M. 2 (PCIe Gen5x4) 2 x Hyper M. 2 (PCIe Gen4x4) 4 x SATA3 1 x USB 3. 2 Gen2 Type C (Rear) 1
ASRock B850M PRO RS WiFiKey Features
Supports AMD Socket AM5 Ryzen 9000, 8000 and
7000 Series Processors
8+2+1 Phase Power Design, Dr.MOS for VCore+SOC+MISC
4 x DDR5 DIMMs
Supports Dual Channel, up to 8000+ (OC)
1 x PCIe 5.0 x16, 1 x PCIe 4.0 x4
Graphics Output Options: 1 x HDMI, 1 DisplayPort
Realtek ALC897 7.1 CH HD Audio Codec, Nahimic Audio
1 x Blazing M.2 (PCIe Gen5x4)
2 x Hyper M.2 (PCIe Gen4x4)
4 x SATA3
1 x USB 3.2 Gen2 Type-C (Rear)
1 x USB 3.2 Gen2 Type-A (Rear)
1 x USB 3.2 Gen1 Type-C (Front)
6 x USB 3.2 Gen1 (2 Rear, 4 Front)
8 x USB 2.0 (4 Rear, 4 Front)
Realtek 2.5G LAN
802.11axe WiFi 6E +Bluetooth
Supports M.2 Bottom Heatsink,
BIOS Flashback
8 + 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 3 x NVMe M.2 SSDs and one of which is able to accommodates the latest PCI Express 5.0 standard.
PRE-INSTALLED I/O SHIELD
ASRock pre-installs the I/O shield for you as an assembly helper to speed up the set-up process.
M.2 BOTTOM HEATSINK
Dissipate heat efficiently through the motherboard PCB, maximize performance while maintaining system stability.
USB 3.2 TYPE-C (FRONT + REAR)
Providing a blazing fast data transfer interface with reversible USB Type-C design that fits the connector either way.
WiFi 6E (802.11axe)
Better and faster internet traffic with lower latency!
Specification
Platform
Micro ATX Form Factor: 9.6 in x 9.6-in, 24.4 cm x 24.4 cm
Unique Feature
Superb Productivity
PCIe Gen5 (Graphics, M.2)
Dual Channel DDR5
Rock-Solid Durability
8+2+1 Power Phase, Dr.MOS for VCore+SOC+MISC
Pre-Installed I/O Shield
Ultrafast Connectivity
2.5G LAN, 802.11axe Wi-Fi 6E Module
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
1 x PCIe 4.0 x4 Slot (PCIE2), supports x4 mode
Chipset:
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 RDNA 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 DisplayPort 1.4 with DSC (compressed), supports HDCP 2.3 and max. resolution up to 4K 120Hz
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
Wireless LAN
802.11axe Wi-Fi 6E Module
Supports IEEE 802.11a/b/g/n/ac/ax/axe
Supports Dual-Band 2x2 with extended 6GHz band support
The Wi-Fi 6E module is supported by Microsoft Windows 11 only. There is no driver available for Windows 10. The availability of the 6GHz band will depend on the different regulation status of each country and region. It will be activated (for supported countries) through Windows Update and software updates once available.
A 6GHz compatible router is required for 6E functionality.
2 x antennas to support 2 x (Transmit) x 2 (Receive) diversity technology
Supports Bluetooth 5.2
Supports MU-MIM
USB
CPU:
1 x USB 3.2 Gen2 Type-C (Rear)
1 x USB 3.2 Gen2 Type-A (Rear)
Chipset:
1 x USB 3.2 Gen1 Type-C (Front)
6 x USB 3.2 Gen1 Type-A (2 Rear, 4 Front)
8 x USB 2.0 (4 Rear, 4 Front)
All USB ports support ESD Protection
Rear Panel I/O
2 x Antenna Mounting Points
1 x HDMI Port
1 x DisplayPort 1.4
1 x USB 3.2 Gen2 Type-A Port (10 Gb/s)
1 x USB 3.2 Gen2 Type-C Port
2 x USB 3.2 Gen1 Ports
4 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
Chipset:
1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode
1 x Hyper M.2 Socket (M2_3, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode
4 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_3 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.
RAID
Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices
Requires additional M.2 NVMe expansion cards to support RAID 10
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)
3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)
1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
1 x 4 pin 12V Power Connector (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 Gen1 Header
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 and CHA_FAN1~3 support the fan power up to 3A (36W).
CPU_FAN2 and CHA_FAN1~3 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
2 x ASRock WiFi 2.4/5/6 GHz Antennas
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
4.1 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Epson is Epic!
This review is for the Epson EcoTank ET-2903 All-in-One Color Supertanker Printer. I am having a difficult time finding enough superlative words to describe how awesome this printer is. Let me begin by saying this printer blows any competition out of the water. I have personally owned several, highly touted, printers in the past four years and either they have underperformed, had complications or had major connectivity issues. They were a source of constant frustration. Then, I was able to procure an Epson EcoTank printer in the office where I work and have loved it. So, when I saw this Epson ET-2903 EcoTank, I did not hesitate to order it. Out of the box, you receive an all in one printer, a very precise set of instructions, and 4 bottles of high quality ink in Black, Cyan, Magenta, and Yellow. The printer is designed to work with the Epson Smart Panel app which guides you effortlessly through the installation and printer initialization process. Epson made this process very easy to set up, even for someone not very tech savvy. With the app, you can use your computer, laptop, tablet or mobile phone to print wirelessly to your printer. The difference with this EcoTank printer versus ink cartridge/toner printers is that each color ink has a separate refillable tank well that uses fluid ink. My office Epson EcoTank ink lasts and lasts and lasts and is very economical. I expect this ET-2903 will ink will last as well. I printed out my initial test page and all is working perfectly. I then printed out a color wheel to test the colors. It printed vibrant, beautiful colors in only seconds with the capability of printing 11 pages per minute. The printer is equipped with a scanning bed to easily scan and print any documents or photos. You can also scan an import any document/picture directly to your mobile phone, tablet or computer. One of the things I have learned about printers with ink tanks is that because they use liquid ink, they work a little differently from standard ink cartridge printers. Each color tank has tubes that run from the tanks to the printhead, providing excellent quality prints each time. However, an issue with this type of printer can be that they can occasionally get clogged if they sit idle for long periods. To prevent this, under the maintenance option on the control panel, I run a nozzle check periodically that takes only seconds to run. If it appears that there is a clog, the maintenance menu has a printhead self-clean option for easy cleaning. I was impressed with how lightweight the printer is and the dimensions are perfect for smaller areas. I measured the printer to be approximately 14.2” Length x 12.5” Deep x 6.4” High and can easily sit atop a desk, printer cart or shelf. Epson got this printer right and I can honestly say if you are looking for an economical, easy to use and reliable printer, you can buy this printer with confidence. With one click on my phone, I said goodbye to clunky disposable ink cartridges that are environmentally unfriendly, and hello to refillable tanks when I placed my order. I am thrilled with this printer and wholeheartedly recommend it.
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Reviewed in the United States on June 12, 2026
★★★★★ 5
Well Designed, Prints Clearly and Accurately, Software is a Bit of a Pain To Set Up
I've never used a printer in my entire life that didn't use finicky ink cartridges that are almost more expensive than the printer itself and need to be constantly replaced; this is a breath of fresh air, despite the dangers of spilling ink and making a mess. I found filling this with ink to be really easy, since you only have to pout the ink bottle in the correct port and leave it to fill itself, which takes about 10-15 seconds. the included ink bottles really only give you enough for a complete fill: You fill it, the printer set up charges the printer with ink, and the remaining ink in the bottles can refill about to the "max" line. Still, I really like this method. The top of the printer pops open like the hood of a car, to access the filling ports. It then has to be lowered down in two stages, presumably to prevent dropping the lid on fingers, though it doesn't seem heavy enough to cause major damage to adult fingers, and I have the printer elevated away from little fingers.
This thing has the tiniest little LCD screen!
It's a bit tricky on the Epson website to determine which software you need specifically. Obviously, my goal is to have a wireless printer for the entire home network. Some of the software seems specifically web-based, so you could theoretically print from work to a home printer, etc., though I balked at setting up or using an email address to send print jobs to. The wireless was annoyingly tricky to set up. I am still not sure if you're supposed to connect a computer and the printer to the wifi separately, or the printer first and then the computer would automatically recognize it, or what. I did successfully connect the printer to the wifi, but couldn't install some of the Epson software - it kept failing - but a quick test did allow me to print wirelessly, so I decided to just call it good and be done.
Everything I have printed has been very clear and crisp. It could be a little darker and have more contrast, but that may be how I printed, or printing from pdf. It printed without jamming or sticking, and everything came through quickly and accurately, without leaks or streaks on my paper. I haven't tried the photocopier function though, since I mainly need it for printing and not scanning.
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Reviewed in the United States on June 13, 2026
★★★★★ 3
No automatic double sided. Bulky external paper tray
Set up was easy. I didn’t like the exterior paper storage. The whole printer was slick and stealthy until it got to that obnoxious tray. Set up was easy. Printer does not have automatic duplex capabilities you have to manually flip the paper to do double sided. I also didn’t think the printing quality was great.
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Reviewed in the United States on June 10, 2026
★★★★★ 5
Sorry, Brother. Epson smashed you.
I have been a long time Epson user. I have owned their printers, all-in-ones, movie projectors, and even a receipt scanner. In all cases, I have always found them to be the best performance per dollar of any of the big guys. There kind of like Panasonic in cameras where people may talk about some other big names, but what you get per dollar is always good from them.
Somewhere along the way, I got disillusioned with companies charging me $60 per pack of ink. I'd get really mad when I couldn't print black text because red or something was out. For a few years, I gave up and just went black and white laser printer. The toner was dirt cheap, and my printing cost dropped to virtually nothing. But, my ability to pront pictures was gone. No more color at all. I'd have to go to a print business if I needed color copies.
Well, this finally changed that. The EcoTank is a great design. The "Eco" stands for the economic cheap ink it takes, and the "Tank" refers to the big holding tanks for the ink and give long ink life. Epson probably makes the best ink, but many manufacturers sell inks for this printer. There's none of the stupid compatability issues with cartridges.
It's 2026, so of course it all connects wirelessly over WiFi. It's wonderful. The only issue is that you might have to do a little more maintenance to keep it reliable. If you let old ink carts sit too long, you could just replace them. Here that isn't an option. I've seen Youtube recommendations that say you should probably print a color page every week or two, so factor that in to keep it running well.
I love it. Five stars.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
Solid Printer for Regular Use
I ordered this Epson EcoTank ET-2903 because I wanted a printer that did not make me feel held hostage by tiny ink cartridges. The refillable tank system is the main reason this printer stands out. Being able to see the ink levels on the front and refill from bottles makes the whole process feel less wasteful and less stressful.
Setup was straightforward. Filling the ink tanks was easier than I expected because the bottles are keyed to the right color, so you are not guessing where each one goes. I did not have a mess during setup, and that was my biggest concern with a tank printer.
Print quality is strong for normal home and office use. Black text comes out clean and easy to read, and color prints are bright enough for school projects, labels, recipes, forms, and casual photo printing. It is not the fastest printer I have ever used, but the tradeoff is lower ink stress and better long-term value.
The wireless printing is convenient once it is connected. I like being able to print from my phone or laptop without moving files around. The scanner and copier are also useful for everyday paperwork, receipts, and documents.
A couple practical notes: this is a rear-feed paper tray style printer, so plan where you are putting it because it needs some clearance. Also, it does not automatically print double-sided, so duplex printing takes a manual flip.
For value, the ink tank system is what makes this worth it. If you print regularly and are tired of buying cartridges, this is a smart home office upgrade.
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Reviewed in the United States on June 12, 2026