Cubix Xpander RackMount 2 User Manual

Xpander Rack Mount 2 is a 2U rack mount PCI Express (PCIe) expansion enclosure that
enables connection of two passively-cooled accelerators to a host computer. The host must
have a PCIe x16 expansion slot available for the host interface controller (HIC). Rack Mount 2
provides two PCIe x16 slots. Connect a HIC in one host computer to one Xpander.
With a HIC installed, a single host computer can support two double-wide, passively-cooled
accelerators. It connects to one HIC in the host computer. Rack Mount 2 provides two PCIe
Generation 3 (Gen 3) x16 slots for graphical processing units (GPUs) or other accelerators. For
example, use NVIDIA Compute Unified Device Architecture (CUDA) -enabled GPUs or Intel
Xeon Phi coprocessors for high-performance computing (HPC).
A HIC in a host computer's PCIe Gen 3.0 x16 slot provides the full connection transfer rate with
Xpander. For example, the HIC in a PCIe Gen 3.0 x16 slot provides a theoretical transfer rate of
8.0Gbs x16 = 128Gbps.
Xpander Rack Mount 2 Gen 3 Technical Specifications
Expansion slots, x16 std
Number of slots
Form factor support
Connecting cable
Cable / connector
Length, standard
Length, optional
Connector duty cycle
PCIe x16 HIC
PCIe Gen 3.0 slot
PCIe Gen 2.0 slot
PCIe Gen 1.0 slot
Front panel LCD
Cubix Corporation
Power supply status
Temperature status
Fan status
PCIe link status
x16 cable
Slot 1 - 2 x16 transfer
rate, theoretical
Cubix Corporation  2800 Lockheed Way  Carson City, NV 89706-0719  Page 1
Sales 800.829.0550 
Xpander Rack Mount 2 Gen 3
HPC Version User Guide
PCI Express Gen 3.0 x16 mechanical / electrical
2 slots in one mainboard
2 double-wide, full-length, full-height accelerators
External PCI Express x16, 136-pin cable
x16 / 136-pin
2.00meters (78.74inches or 6.56feet)
1.00meter (39.37inches or 3.28feet)
250 mating cycles maximum per connector
Host interface controller, install in a PCIe x16 slot
Provides a theoretical 128Gbps data transfer rate
Provides a theoretical 80Gbps data transfer rate
Provides a theoretical 40Gbps data transfer rate
Main menu = left button; sub-menu = right button
MIB assembly and revision; management firmware revision
Standard main power
3 sensor readouts in degrees Centigrade (C)
Fan status, voltage percent (%) speed
x16 cable connected; 8.0Gbps x16 link speed
Connected or not connected status
PCIe Gen 3.0, 8.0Gbps x16 = 128.0Gbps
PCIe Gen 2.0, 5.0Gbps x16 = 80.0Gbps
PCIe Gen 1.0, 2.5Gpbs x16 = 40.0Gbps
 sales@cubix.com  xpander-rackmount2-g3 20181115
http://www.cubix.com