{"id":170,"date":"2024-04-08T15:45:29","date_gmt":"2024-04-08T13:45:29","guid":{"rendered":"https:\/\/monraspberry.com\/?post_type=product&#038;p=170"},"modified":"2026-11-02T05:03:07","modified_gmt":"2026-11-02T04:03:07","slug":"raspberry-pi-compute-module-4-io-board-development-kit","status":"publish","type":"product","link":"https:\/\/monraspberry.com\/en\/produit\/kit-de-developpement-raspberry-pi-compute-module-4-io-board\/","title":{"rendered":"Raspberry Pi Compute Module 4 IO Board development kit"},"content":{"rendered":"<h2>CM4 IO Board: the official development board for the Compute Module 4<\/h2>\n<p>The Compute Module 4 IO Board is the official carrier board for the Raspberry Pi Compute Module 4. It serves both as a development platform and as an embedded board for your finished products: plug in a CM4 (supplied separately) and you instantly get the connectors of a complete Raspberry Pi, plus a real standard PCIe slot. The main connectors are lined up along one side to simplify enclosure design.<\/p>\n<h3>Highlights<\/h3>\n<ul>\n<li><strong>Compatible with all CM4 variants<\/strong> : with or without eMMC, with or without Wi-Fi.<\/li>\n<li><strong>Standard PCIe Gen 2 x1 slot<\/strong> : NVMe card via passive adapter, SATA, networking or USB 3.0.<\/li>\n<li><strong>Two full-size HDMI 2.0<\/strong>, two camera connectors and two MIPI display connectors.<\/li>\n<li><strong>40-pin HAT connector<\/strong> with PoE support via a PoE HAT.<\/li>\n<li><strong>eMMC programming<\/strong> through the micro-USB port with rpiboot.<\/li>\n<li><strong>Real-time clock<\/strong> with CR2032 battery holder and CM4 wake-up.<\/li>\n<li><strong>12 V PWM fan controller<\/strong> with tachometer feedback.<\/li>\n<\/ul>\n<h2>Technical specifications<\/h2>\n<div class=\"mr-scroll\">\n<table>\n<thead>\n<tr>\n<th>Element<\/th>\n<th>CM4 IO Board<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Support<\/td>\n<td>Connectors for Compute Module 4, all variants<\/td>\n<\/tr>\n<tr>\n<td>Video<\/td>\n<td>2 x full-size HDMI 2.0<\/td>\n<\/tr>\n<tr>\n<td>Camera and display<\/td>\n<td>2 MIPI CSI camera connectors, 2 MIPI DSI display connectors<\/td>\n<\/tr>\n<tr>\n<td>Network<\/td>\n<td>Gigabit RJ45 jack, PoE HAT compatible<\/td>\n<\/tr>\n<tr>\n<td>USB<\/td>\n<td>USB 2.0 hub: 2 ports + header for 2 additional ports; micro-USB for updating the CM4<\/td>\n<\/tr>\n<tr>\n<td>PCIe<\/td>\n<td>Standard Gen 2 x1 slot<\/td>\n<\/tr>\n<tr>\n<td>Storage<\/td>\n<td>microSD reader for CM4 without eMMC (Lite)<\/td>\n<\/tr>\n<tr>\n<td>RTC<\/td>\n<td>PCF85063AT, CR2032 battery holder<\/td>\n<\/tr>\n<tr>\n<td>Fan<\/td>\n<td>12 V PWM fan connector with tachometer<\/td>\n<\/tr>\n<tr>\n<td>Jumpers<\/td>\n<td>Wireless disable, EEPROM write protection, forced USB boot<\/td>\n<\/tr>\n<tr>\n<td>Power supply<\/td>\n<td>2.1 mm 12 V DC jack (center positive); 5 V possible with reduced features<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>160 x 90 mm<\/td>\n<\/tr>\n<tr>\n<td>Production<\/td>\n<td>Until at least January 2028<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Not included: the Compute Module 4, the power supply, the clock battery and the PoE HAT.<\/p>\n<h2>Which one to choose? Which module to install on the CM4 IO Board<\/h2>\n<div class=\"mr-scroll\">\n<table>\n<thead>\n<tr>\n<th>Module<\/th>\n<th>On this board<\/th>\n<th>Storage<\/th>\n<th>Key points<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/monraspberry.com\/en\/product\/raspberry-pi-compute-module-4\/\">Compute Module 4<\/a><\/td>\n<td>Yes, target module<\/td>\n<td>eMMC or Lite (board's microSD)<\/td>\n<td>Natural choice, RAM and Wi-Fi variants<\/td>\n<\/tr>\n<tr>\n<td>Compute Module 4S<\/td>\n<td>No<\/td>\n<td>8 GB eMMC<\/td>\n<td>SODIMM-type form factor, for CM3-format boards<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/monraspberry.com\/en\/product\/raspberry-pi-compute-module-5\/\">Compute Module 5<\/a><\/td>\n<td>Mechanically yes, not officially documented<\/td>\n<td>eMMC or Lite<\/td>\n<td>Prefer the IO board dedicated to the CM5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>For a prototype that should resemble a Raspberry Pi 4 while keeping a real PCIe slot, the CM4 IO Board combined with a CM4 is the reference combination. For a more compact, network-focused format, take a look at the <a href=\"https:\/\/monraspberry.com\/en\/product\/mini-dual-gigabit-ethernet-base-board-raspberry-pi-cm4\/\">Mini Dual Gigabit Ethernet Base Board for CM4<\/a>.<\/p>\n<h2>Compatibility and pitfalls<\/h2>\n<ul>\n<li><strong>12 V power supply<\/strong> : this is the main input. The 12 V also powers the PCIe slot, the fan and the external power connector. Without these uses, a range of 7.5 to 28 V is possible.<\/li>\n<li><strong>PoE<\/strong> : a PoE HAT only supplies 5 V, so the PCIe slot and the fan do not work in this case.<\/li>\n<li><strong>USB 2.0 only<\/strong> : for USB 3.0, add a PCIe USB 3.0 card with a VLI805 controller.<\/li>\n<li><strong>USB ports disabled by default<\/strong> on the CM4: one line in config.txt enables them.<\/li>\n<li><strong>microSD<\/strong> : only works with a CM4 Lite (without eMMC).<\/li>\n<li><strong>Booting through a PCIe switch<\/strong> is not supported, and there is no MSI-X (falls back to MSI).<\/li>\n<\/ul>\n<h2>Recommended accessories<\/h2>\n<ul>\n<li><a href=\"https:\/\/monraspberry.com\/en\/product\/official-raspberry-pi-cm4-dantenna-kit\/\">Official Raspberry Pi CM4 antenna kit<\/a> : better Wi-Fi range inside an enclosure.<\/li>\n<li><a href=\"https:\/\/monraspberry.com\/en\/product\/raspberry-pi-poe-hat\/\">Raspberry Pi PoE+ HAT<\/a> : power and networking over a single cable (without PCIe or fan).<\/li>\n<li>Official HDMI cable: the board has full-size HDMI ports.<\/li>\n<li><a href=\"https:\/\/monraspberry.com\/en\/product\/usb-to-micro-usb-cable\/\">USB to micro-USB cable<\/a> : to flash the CM4 eMMC with rpiboot.<\/li>\n<\/ul>\n<h2>Uses and projects<\/h2>\n<ul>\n<li><strong>Product prototyping<\/strong> before designing your own carrier board.<\/li>\n<li><strong>Gateway or router<\/strong> using a PCIe network card.<\/li>\n<li><strong>Embedded vision<\/strong> with two MIPI cameras.<\/li>\n<li><strong>Production station<\/strong> to program the eMMC of module batches.<\/li>\n<\/ul>\n<p>Further reading: using a Raspberry Pi in a commercial product and Raspberry Pi in industry.<\/p>\n<h2>Frequently asked questions<\/h2>\n<h3>Does the CM4 IO Board come with a Compute Module 4?<\/h3>\n<p>No, the module is sold separately. The board accepts all CM4 variants.<\/p>\n<h3>Which power supply should I use?<\/h3>\n<p>A 12 V power supply on the 2.1 mm center-positive DC jack. Raspberry Pi recommends allowing about 9 W for the CM4, plus the consumption of your PCIe and USB peripherals.<\/p>\n<h3>Can I install an NVMe SSD?<\/h3>\n<p>Yes, with a passive PCIe to M.2 adapter in the PCIe slot. The CM4 can boot from NVMe.<\/p>\n<h3>How do I flash the CM4 eMMC?<\/h3>\n<p>Fit the USB boot jumper, connect the micro-USB port to a computer and use rpiboot, then Raspberry Pi Imager.<\/p>\n<h3>Does the board support PoE?<\/h3>\n<p>Yes, via a Raspberry Pi PoE HAT installed on the 40-pin connector.<\/p>\n<h3>Can I use a CM4S on it?<\/h3>\n<p>No, the CM4S uses a SODIMM-type form factor that is incompatible with this board's connectors.<\/p>\n<p><strong>Order your CM4 IO Board on monraspberry.com<\/strong> : official, tested product, stock based in France, shipping within 24\/48 h after receipt of payment, free pickup point delivery on orders from \u20ac200, returns possible within 14 days with return authorization, and payment by Visa, Mastercard, PayPal, Apple Pay or Google Pay.<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li>Official carrier board for developing with and integrating the Compute Module 4<\/li>\n<li>PCIe Gen 2 x1 slot, two HDMI 2.0, two cameras and two MIPI displays<\/li>\n<li>Compatible with all CM4 variants, eMMC programming, RTC and PoE support<\/li>\n<\/ul>","protected":false},"featured_media":23317,"template":"","meta":[],"product_brand":[393],"product_cat":[37],"product_tag":[],"class_list":["post-170","product","type-product","status-publish","has-post-thumbnail","product_brand-raspberry-pi","product_cat-accessoires-raspberry-pi-compute-module","first","instock","taxable","shipping-taxable","purchasable","product-type-simple","add-to-wishlist-after_add_to_cart"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/170\/revisions"}],"predecessor-version":[{"id":33663,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/170\/revisions\/33663"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/media\/23317"}],"wp:attachment":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/media?parent=170"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_brand?post=170"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_cat?post=170"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_tag?post=170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}