Product guide

NeXtScale nx360 M4 27
NeXtScale PCIe Native Expansion Tray
The NeXtScale PCIe Native Expansion Tray is a half-wide 1U expansion tray that attaches to the nx360
M4 to provide two full-height full-length double-width PCIe 3.0 x16 slots. The tray is designed to support
two GPU adapters or coprocessors.
Note: The PCIe Native Expansion Tray and the Storage Native Expansion Tray cannot be connected to
the same compute node.
The following figure shows the PCIe Native Expansion Tray attached to an nx360 M4 (shown with the top
cover removed). The figure shows two NVIDIA GPUs installed.
Figure 9. NeXtScale PCIe Native Expansion Tray attached to an nx360 M4 compute node
Ordering information is listed in the following table.
Table 19. Ordering information
Part number Feature code Description
00Y8393 A4MB NeXtScale PCIe Native Expansion Tray
When the PCIe Native Expansion Tray is used, it is connected to the compute node via two riser cards,
each providing a PCIe x16 connector to the GPUs or coprocessors installed in the tray.
2-slot PCIe 3.0 x24 riser card installed in the front riser slot (riser slot 1 - see Figure 3). This riser card
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replaces the standard 1-slot riser used to connect standard PCIe cards internal to the compute node.
The 2-slot riser card offers these connection:
PCIe 3.0 x8 slot for the slot internal to the compute node

PCIe 3.0 x16 slots for the front adapter in the PCIe Native Expansion Tray

1-slot PCIe 3.0 x16 riser card installed in the rear riser slot (riser slot 2 - see Figure 3). This riser is

used to connect the rear adapter in the PCIe Native Expansion Tray.