The RPI CMDK ADAPTER is a camera and display adapter for Raspberry Pi Compute Board. The board comes with one camera adapter board and one display adapter board. source

Raspberry Pi Compute Module 3 (CM3) targets consumer products

Sort of announced in July 2016, the recent Raspberry Pi Compute Module 3 (CM3) is known to arrive at the market quickly. Last October PC equipment company NEC previously announced a new spread of professional P and V Series large format displays that smoothly include the RPi CM3 module. The new module, for sale in two versions – CM3 and CM3L (lite) – will complement the CM1 module launched in earlier times.

Specs for the CM1, CM3 and CM3L SODIMM modules appear in the data sheet found on the RPi webpage
https://www.raspberrypi.org/documentation/hardware/computemodule/RPI-CM-DATASHEET-V1_0.pdf
. Where the CM1 was based upon a BCM2835 processor chip (as employed on the original RPi and RPi B+ models), the CM3 contains a quad-core 1.2 GHz BCM2837 processor, the same as the RPi 3. It has 1 GB of LPDDR2 RAM and 4 GB eMMC Flash. The ‘L’ version is a CM3 without eMMC Flash, allowing the end user to connect his/her very own SD/eMMC product. The pinout of the CM1 and CM3 modules are the same but the CM3 module is one millimeter higher (31 mm).

Pricing

The price of the new modules is not known yet, but because a CM1 sells at roughly £20, a comparable price could possibly be anticipated for the CM3.

In keeping with : https://www.elektormagazine.com/news/raspberry-pi-compute-module-3-cm3-to-hit-the-market-soon

Specifications

The CM3 is based upon the Raspberry Pi 3 hardware and is designed for industrial use in order to offer a less expensive opportinity for people to make custom products based upon the Pi hardware and software platform. The Compute Module line is smaller and has less benefits and ports than a standard Raspberry Pi, that makes it perfect for Internet of Things (IoT) products.

“The module uses a standard DDR2 SODIMM form factor, sockets for which are made by several manufacturers, are effortlessly available, and are low-cost,” Raspberry Pi COO and hardware lead James Adams explained in a post.

There are 2 versions of the CM3. Listed below are the specifications for both of them:

Standard Variant:

BCM2837 chip at up to 1.2Gigahertz
1GB RAM
4GB of on-module eMMC flash

Lite Model:

BCM2837 processor at up to 1.2GHz
1GB RAM
SD card interface on Module pins which means that a person can wire it up to an eMMC or SD card of their choice

Both models can be slotted into a newly released Compute Module IO Board V3 (CMIO3) which helps you to do the following:

Gives needed power to the CM3
Lets you program the CM3 Standard’s flash memory or to work with an SD card on the Lite version.
Connect to the processor interfaces in a slightly more friendly fashion (pin headers and flexi connectors, much like the Pi)
Supplies the essential HDMI and USB connectors allowing you to have an entire system which can boot Raspbian (or maybe the Operating-system of your choice).

“This board presents both a starting template for those who want to design with the Compute Module, and a quick way to begin with experimenting with the hardware, and building and testing a system, before going to the fee for fabricating a tailor made board,” Adam said.

The older Compute Module model will still be available, for folks who do not require the CM3’s performance boost. As per the Raspberry Pi official magazine The MagPi:

“With a couple of caveats, the CM3 may be used a drop-in substitute for the CM1 considering they are pin compatible; the CM3 is 1mm taller, having said that, while the CPU can pull far more current from the VBAT power source line and will definitely generate a whole lot more heat under heavy load.”