While the Raspberry Pi 4 and Raspberry Pi 3 Model B+ look almost identical (they measure 85 mm x 56 mm, and the board layout is similar), their input/output ports are anything but.

The Raspberry Pi 4 Model B has similar wireless connectivity to the Raspberry Pi 3 Model B+. The Raspberry Pi 4 B offers 802.11ac Wi-Fi, ... with the same pin layout as earlier boards.

Famous in part for its small size, the Raspberry Pi line of inexpensive computers is famously no bigger than a deck of cards, and the Raspberry Pi 4 Model B measures just 3.4 x 2.2 x 0.4 inches.

Other than that there are no differences between the boards of each Raspberry Pi 4 model. Each comes with a 1.5GHz 64-bit quad-core ARM Cortex-A72 CPU, 2.4GHz and 5GHz WiFi and finally Gigabit ...

That changes today with the arrival of the Raspberry Pi 4 Model B. Three years in the making, it comes with up to 4GB memory, USB 3.0, dual-screen 4K display support, and a faster and newer CPU ...

Raspberry Pi 4 won't work with some power cables due to its USB-C design flaw; Raspberry Pi 4 Model B is out: Faster CPU, GPU, dual-screen 4K, up to 4GB for $55; Raspberry Pi users: You got Pi 4 ...