Lastly, the Model B+ comes complete with Power over Ethernet (PoE), which hasn't officially been supported until now. And similar to the Pi 3 Model B, it costs $35 - while the previous model is now on sale for $5 less through some outlets. Raspberry Pi Foundation said that the wireless LAN with dual-band comes with a modular compliance certificate, which makes the launch of Raspberry Pi 3 Model B+ in easier and cheaper way. The price remains the same too (again, no surprise there) wher you'll pay $35/£30 for the board. It's among the leaders, however, in moving from 802.11n to faster 802.11ac WiFi, and it's now dual-band 2.4GHz/5GHz instead of only 2.4GHz.
For the new board, the Raspberry Pi Foundation uses an updated version of the processor in the Pi 3 Model B. The new version can hit higher clock frequencies, and more accurately monitor and control the temperature of the chip, according to a blog post by Raspberry Pi chief Eben Upton.
The wireless components offer a significant additional benefit. The wireless circuitry is encapsulated under a metal shield (the one embossed with the Raspberry Pi logo).
The new GbE port is provided via a Microchip LAN7515 controller.
A faster ARM chip is nice, but the connectivity improvements will likely be the main selling point of this upgrade.
How Much is the Raspberry Pi 3 B+?The latter additions will be particularly important for people who use a Pi as a basis for Internet of Things devices (IoT). The Raspberry Pi Foundation is planning to launch a PoE HAT soon that generates the necessary 5V power from the 48V PoE supply.
The new quad-core -A53 Broadcom BCM2837B0 SoC improves the regulation accuracy of the PMIC, which has been switched to a MaxLinear MxL7704 part. Today, many enthusiasts put a heat sink on their Raspberry Pis. The SBC is rated for 0 to 50°C temperatures. Audio/video connections include HDMI and MIPI DSI/CSI display/camera ports, as well as a four-pole stereo output and composite video port.