Fortunately there are a number of ways to figure out which board you have. A friend a while ago gave me a raspberry pi.
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These can be used to connect most usb 20 devices.
What raspberry pi model do i have. Both boards have gigabit ethernet but the speed of the raspberry pis 3s ethernet is constrained by relying on a usb 20 bridge which limits the maximum throughput to about 300mbps. Looking at the pcb itself here is an image that shows the three different model bs at the time of writing. The biggest connectivity upgrade you have when comparing the raspberry pi 4 to the raspberry pi 3 model 3b might just be the switch from bluetooth 42 to bluetooth 5.
The raspberry pi isnt just a single board any more there are a growing number of different variants available. The model a a and pi zero have no ethernet circuitry and are commonly connected to a network using an external user supplied usb ethernet or wi fi adapter. To date the raspberry pi foundation have released a various number of raspberry pi models each have slight variations and improvements on the previous.
I really like it because its fun to use just for kicks outside of using a windows machine. Unfortunately they all look rather similar and sometimes it can be important which board is which. The raspberry pi 4 has faster ethernet than the raspberry pi 3 model b.
Contents1 raspberry pi model b revision 111 features2 raspberry pi model b revision 221 features3 raspberry pi model a31 features4 raspberry pi model b41 features5 raspberry pi model. If you have the one on the right with a big 2 on it then you have the latest raspberry pi 2 model b. But i have two.
Its also worth noting that bluetooth 5 uses much less power than bluetooth 42. This article presents a few methods for easily finding the pi revision number and identifying what pi model you have. If you have the one in the middle you have a raspberry pi model b.
The original raspberry pi model b has square edges on. Additional usb devices such as mice keyboards network adapters and external storage can be connected via a usb hub. The model aa has one usb port the model b has two ports and the model b raspberry pi 2 model b and raspberry pi 3 model b have four ports.
The raspberry pi 4 model b safety and user guide mentions raspberry pi 4 model b 1 gb 2 gb 4 gb 8 gb variants but the 8gb model was not available as of the 2019 launch. Each raspberry pi model has a different pi revision number and this identifies exactly what hardware you are using. The new standard offers quadruple the range and roughly double the speed over the legacy option.