{"id":140313,"date":"2021-09-24T10:14:27","date_gmt":"2021-09-24T08:14:27","guid":{"rendered":"https:\/\/raspberrypi.dk\/produkt\/waveshare-cm4-io-board-with-poe-feature-type-b\/"},"modified":"2025-10-23T11:09:37","modified_gmt":"2025-10-23T09:09:37","slug":"waveshare-cm4-io-board-with-poe-feature-type-b","status":"publish","type":"product","link":"https:\/\/raspberrypi.dk\/en\/product\/waveshare-cm4-io-board-with-poe-feature-type-b\/","title":{"rendered":"Waveshare CM4 IO Board with PoE Feature (Type B)"},"content":{"rendered":"
\n
Compute Module 4 PoE Board (B)<\/div>\n

Suitable For Evaluating The Raspberry Pi CM4 Or Being Integrated Into End Products<\/p>\n

PoE Base Board for all Compute Module 4 Variants<\/span><\/p>\n

<\/p>\n<\/div>\n

\n
Specifications<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
CM4 SOCKET<\/th>\nsuitable for all variants of Compute Module 4<\/td>\n<\/tr>\n
NETWORKING<\/th>\nGigabit Ethernet RJ45 connector, integrates 802.3af-compliant PoE circuit (5V\/2.5A)<\/td>\n<\/tr>\n
CONNECTOR<\/th>\nRaspberry Pi 40PIN GPIO header, non-isolated RS485, non-isolated RS232, PCIe Gen 2 \u00d7 1<\/td>\n<\/tr>\n
USB<\/th>\nUSB 2.0 Type A \u00d7 4<\/td>\n<\/tr>\n
DISPLAY<\/th>\nMIPI DSI display port \u00d7 2 (15pin 1.0mm FPC connector)<\/td>\n<\/tr>\n
CAMERA<\/th>\nMIPI CSI-2 camera port \u00d7 2 (15pin 1.0mm FPC connector)<\/td>\n<\/tr>\n
VIDEO<\/th>\nHDMI port \u00d7 2, supports 4K 30fps output<\/td>\n<\/tr>\n
RTC<\/th>\nReal-time clock with battery socket and ability to wake Compute Module 4<\/td>\n<\/tr>\n
STORAGE<\/th>\nMicroSD card socket for Compute Module 4 Lite (without eMMC) variants<\/td>\n<\/tr>\n
FAN HEADER<\/th>\nallows speed adjustment and measurement, 5V \/ 12V<\/td>\n<\/tr>\n
POWER INPUT<\/th>\n5V<\/td>\n<\/tr>\n
DIMENSIONS<\/th>\n124.5 \u00d7 108.8mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>\n
\n
Connecting With Compute Module 4<\/div>\n

Standard CM4 Socket And Color-Coded Raspberry Pi 40PIN GPIO Header
\nSuitable For All Variants Of Compute Module 4<\/p>\n

<\/p>\n<\/div>\n

\n
Rich Peripheral Connectors<\/div>\n

Onboard Connectors Including CSI\/DSI\/HDMI\/USB\/ETH\/PCIe\/RS232\/RS485<\/p>\n

<\/p>\n<\/div>\n

\n
What’s On Board<\/div>\n

<\/p>\n

\n
\n
    \n
  1. CM4 socket<\/strong>
    \nsuitable for all variants of Compute Module 4<\/li>\n
  2. 40PIN GPIO header<\/strong><\/li>\n
  3. BOOT selection<\/strong>
    \nON: CM4 would be booted from USB-C interface
    \nOFF: CM4 would be booted from eMMC or Micro SD card<\/li>\n
  4. Misc functional pins<\/strong><\/li>\n
  5. USB Type-C power supply \/ programming<\/strong>
    \n5V\/2.5A power supply,
    \nalso allows burning system image into\u00a0Compute Module 4 eMMC variants<\/li>\n
  6. Status indicators<\/strong>
    \nACT: Raspberry Pi operating status indicator
    \nPWR: Raspberry Pi power indicator<\/li>\n
  7. DISP<\/strong>
    \n2x MIPI DSI display port<\/li>\n
  8. CAM<\/strong>
    \n2x MIPI CSI camera ports<\/li>\n
  9. USB2.0 ports<\/strong>
    \n4x USB2.0 ports, for connecting sorts of USB devices<\/li>\n<\/ol>\n<\/div>\n
    \n
      \n
    1. HDMI ports<\/strong>
      \n2x HDMI ports, supports dual 4K 30fps output<\/li>\n
    2. RTC battery holder<\/strong>
      \nsupports CR1220 button cell<\/li>\n
    3. FAN header<\/strong>
      \nfor connecting cooling fan, allows speed adjustment and measurement<\/li>\n
    4. PCIe Gen 2 \u00d7 1 socket<\/strong>
      \nforconnecting PCIe Gen 2 \u00d7 1 modules<\/li>\n
    5. Gigabit Ethernet connector<\/strong>
      \nGigabit Ethernet RJ45 with PoE support, 10\/100\/1000M compatible<\/li>\n
    6. DC 5V output<\/strong><\/li>\n
    7. RS485<\/strong>
      \nwith 600W lightningproof, anti-surge, and 15KV ESD protection,
      \nreversed optional 120R balancing resistor jumper<\/li>\n
    8. RS232<\/strong>
      \nwith TVS diode, anti-surge, and ESD protection<\/li>\n
    9. Buzzer<\/strong><\/li>\n
    10. FAN_VDD\/PoE selection<\/strong>
      \ncooling fan driving voltage: 12V or 5V
      \nPoE: enable (EN) or disable (DIS)<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

      <\/p>\n

      \n
      \n
        \n
      1. FE1.1S<\/strong>
        \nUSB expansion chip<\/li>\n
      2. PCF52063ATL<\/strong>
        \nRTC chip<\/li>\n
      3. RTC\/FAN<\/strong>
        \nI2C bus switch,
        \nSDA0\/SCL0: I2C-10 is shared with CSI\/DSI
        \nGPIO3\/2: I2C-1 is shared with 40PIN header<\/li>\n
      4. IO logic level selection<\/strong>
        \nset the CM4 IO logic level as 3.3V or 1.8V<\/li>\n<\/ol>\n<\/div>\n
        \n
          \n
        1. RTC interruption configuration<\/strong>
          \nPI-RUN: CM4 will reboot on RTC interruption
          \nGN-EN: CM4 powerdown on RTC interruption
          \nD4: D4 pin is triggered on RTC interruption<\/li>\n
        2. Micro SD card slot<\/strong>
          \ninsert a Micro SD card with pre-burnt system, to start up\u00a0Compute Module 4 Lite<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n
          \n
          Outline Dimensions<\/div>\n

          <\/p>\n<\/div>\n

          \n
          Application Example<\/div>\n

          Suitable For PoE Powered Raspberry Pi Projects, Or Other Industrial Context<\/p>\n

          <\/p>\n

          for reference only, CM4, display, and cameras are NOT included.<\/div>\n<\/div>\n
          \n
          Resources & Services<\/div>\n

          <\/p>\n

          \n

          <\/p>\n

          \n
          WIKI:\u00a0<\/strong>Compute_Module_4_PoE_Board_(B)<\/a><\/div>\n<\/div>\n

          * Resources for different product may vary, please check the wiki page to confirm the actually provided resources.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

          Raspberry Pi Compute Module 4 IO Board With PoE Feature (Type B), For All Variants Of CM4.<\/div>\n
          <\/div>\n
          Variant with case is found here.<\/a><\/div>\n
          <\/div>\n
          Buy your Raspberry Pi Compute Module 4 (CM4) here<\/a>.<\/div>\n","protected":false},"featured_media":140298,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[612],"product_tag":[782],"class_list":{"0":"post-140313","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-industrial-raspberry-pi","7":"product_tag-cm4-en","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"composite_virtual":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":2,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"yoast_head":"\nWaveshare CM4 IO Board with PoE Feature (Type B) \u2022 RaspberryPi.dk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/raspberrypi.dk\/en\/product\/waveshare-cm4-io-board-with-poe-feature-type-b\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Waveshare CM4 IO Board with PoE Feature (Type B) \u2022 RaspberryPi.dk\" \/>\n<meta property=\"og:description\" content=\"Raspberry Pi Compute Module 4 IO Board With PoE Feature (Type B), For All Variants Of CM4. Variant with case is found here. Buy your Raspberry Pi Compute Module 4 (CM4) here.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/raspberrypi.dk\/en\/product\/waveshare-cm4-io-board-with-poe-feature-type-b\/\" \/>\n<meta property=\"og:site_name\" content=\"RaspberryPi.dk\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/RaspberryPiDanmark\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-23T09:09:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/raspberrypi.dk\/wp-content\/uploads\/2021\/09\/cm4-io-board-poe-b.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"758\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@raspberrypidk\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script 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