ALFA Network Pi-WiFi4_PCBA Raspberry Pi™ form factor embedded board with 2.4 GHz WiFi 4, Ethernet and 4× USB 2.0


Pickup available at 2251 NW 41st Street

Usually ready in 1 hour

ALFA Network Pi-WiFi4 PCBA is a high-power WiFi 802.11n router board in Raspberry Pi™ 3B shape, equipped with Fast Ethernet and 4× USB 2.0

This is a router board, not a Raspberry Pi. 

Pi-WiFi4 offers an integrated 802.11b/g/n WiFi (2.4 GHz, N300, up to 27 dBm) radio with IPEX/U.FL antenna connectors, single Fast Ethernet, and four USB 2.0 interfaces for various applications.

Official OpenWrt support, web-based recovery, and system serial console access over the micro USB connector (driver free) make development extremely easy.

  • Qualcomm™ QCA9531 (650 MHz single-core MIPS)
  • 128 MB of DDR2 RAM
  • 16, 32 or 64 MB of SPI NOR flash
  • Integrated WiFi N300 2.4 GHz (up to 27 dBm)
  • 1× Fast Ethernet with ESD protection
  • 4× USB 2.0 Type-A (host)
  • 1× push-button
  • 8-pin console and GPIO header (1.27 mm pitch)
  • 1× USB 2.0 micro Type-B (power, system console)
  • 3× LED
Parameter Value
SOC Qualcomm™ QCA9531 with 650 MHz single-core MIPS 24Kc CPU
RAM 128 MB of DDR2
Flash 16, 32 or 64 MB of SPI NOR flash
WiFi 802.11b/g/n 2T2R 2.4 GHz
2× IPEX/U.FL antenna connectors
USB 4× USB 2.0 Type-A (host)
Genesys Logic GL850G USB 2.0 HUB
1× USB 2.0 micro Type-B for system serial console access (driver free)
Ethernet 1× Fast Ethernet with ESD protection
Pin headers 1× 8-pin system serial console and GPIO (1.27 mm pitch)
Button 1× push-button (reset)
LED 1× power (blue)
1× USB (blue)
1× WLAN (blue)
Other External hardware watchdog
Software U-Boot with web-based firmware recovery support
Officially supported in OpenWrt (Linux Kernel 5.4)
Power supply USB 2.0 micro Type-B for 5 V DC input
Mounting holes ∅ 3 mm, 58 × 49 mm
Dimensions 85 × 56 × 17 mm
Operating humidity 5 % ~ 95 % RH, non-condensing
Operating temperature -40 ° ~ 65 ° C
Weight 36 g

Warranty & Support:
Complimentary Telephone and Email/Live Chat Support (Click Here)
Online Technical Manuals and Instructions (Click Here)

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.

Return Policy: You may return this item if new for an exchange or refund at your discretion within 30 days of receipt. Because range can vary greatly based on your environment, if you are not sure a particular product will meet your range needs please contact us before buying. Orders with free shipping selected will incur a 10% restocking fee to help us cover the original shipping cost, unless the item is defective or different from the advertisement. Any expedited shipping charges paid, including return shipping, are never refundable. If you opt for an exchange, we will pay to ship the replacement to you. Items must be returned the way they were received, with all pieces, documentation, and retail packaging (if applicable) included. For bulk purchases, see our bulk purchase return policy here.

Shipping & Returns
FREE Standard shipping on all items shipped in the USA! 
We are in Florida and ship to: USA, Australia, Austria, Canada, France, Germany, Israel, Netherlands, and the United Kingdom. Local pickup available in Gainesville, FL

Expedited shipping orders placed before 3PM EST weekdays will ship that day. Standard shipping orders ship within 1 business day.

Sales tax: shipments shipped to states in which we are registered to collect tax will have appropriate tax added at checkout. Tax exempt forms can be sent to our support staff who can activate exemption status. 

Lost packages and insurance

International Shipping:

Shipping options are visible in cart by using the shipping estimator. Transit times posted are estimates. International packages are subject to customs holds and duty payment may be required by your government on delivery. The cost of duty  is not reimbursable. Internatonal shipping charges are not refundable in the event of a return.


See item description for product specific return policies, and return policies vary by item.

Bulk/High Value Order Returns

Due to the labor required to package and ship bulk orders, as well as cost and stock issues involved in replenishing items, bulk orders of 5 pieces or more are not returnable unless the equipment is defective or mis-advertised, or a return period is prenegotiated. For non-defective returns over $500, a restocking fee may be deducted from the refund to cover bank or card processing fees.


Items on backorder or preorder will ship as estimated on the item page. You can cancel an order any time up until shipment. Orders with expedited shipping will arrive in the advertised time after the order ships, not after the order is placed.


If you want to cancel an order, please email or call us at (352) 372-9902. If your item has not been shipped, we will cancel the order and provide a full refund.

Customer Reviews

Based on 1 review

Item came as described and in good working order.