User Manual

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2.15.3 Baseboard Connectors
The NUC 11 Extreme Kit has a baseboard that expands the connectivity of the NUC 11 Extreme
Compute Element through the usage of PCI Express lanes. Connectors that are used for
expansion through the NUC Element gold fingers to the Baseboard are shown in Table 6. Figure 9
shows a top down view of all connectors and headers on the BBMC1B1 Baseboard.
Table 6. Intel BBMC1B1 Baseboard configuration
Connector Type
Description
PCIe 4.0 x16 Slot
The NUC Extreme Compute Element input connector (black)
PCIe 4.0 x4 M.2 Slot
M.2 slot that is configured for NVMe only (bottom mounted)
PCIe 4.0 x16 Slot
PCIe 4.0 x16 standard compliant slot (blue)
PCIe 4.0 x4 Slot
PCIe 4.0 x4 standard compliant slot (black)
PCI Express Bifurcation Settings
When a single PCIe 4.0 x16 add-in card is used in the PCIe 4.0 x16 slot it can access the full PCIe 4.0
x16 bandwidth. When the M.2 slot, the PCIe x4 slot, or both are used the x16 slot is reduced to x8.
*Note* PCIe 4.0 x16 Bifurcation is supported to a maximum of three PCI Express devices (x8 + 2 x4).
Item
Description
A
NUC 11 Extreme PCIe 4.0 x16 Slot input (black)
B
PCIe 4.0 x4 M.2 Slot 2280/22110 NVMe only (bottom mounted)
C
D
E
F
G
H
Standard ATX Power input connector (24pin)
PMBUS 5pin header
Addressable RGB 5V LED Headers
PCIe 4.0 x16 Slot (blue)
PCIe 4.0 x4 Slot (black)
4pin USB 2.0 input (interface to control RGB LEDs)
Figure 9. BBMC1B1 Baseboard Connectors