Intel X38ML Product Specification - Page 121
USB Connector
UPC - 735858197397
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Intel® Server Board X38ML Connectors and Jumper Blocks Table 60. Internal 3-pin Serial B Port Pin-out (J4C1) Signal Name RXD GND TXD Pin 1 2 3 7.5.5 USB Connector The following table provides the pin-out for the dual external USB connectors. This connector is stacked with an RJ-45 connector (connected to NIC1 LAN signals). Table 61. USB Connectors Pin-out (JA2A1) Pin Signal Name 1 USB PWR 2 USBP_1N 3 USBP_1P 4 GND 5 USB PWR 6 USBP_0N 7 USBP_0P 8 GND A header on the server board provides an option to support two additional USB connectors. The pin-out of the header is detailed in the following table. Table 62. Optional USB Connection Header Pin-out (J1B3) Signal Name Pin Signal Name Pin USB PWR 1 USB PWR 2 USBP_5N 3 USBP_6N 4 USBP_5P 5 USBP_6P 6 GND 7 GND 8 KEY 9 OC# 10 Revision 1.3 109 Intel order number E15331-006