Cubix Corporation
2800 Lockheed Way
Carson City, NV 89706-
0713 ● Page 1
Sales 800.829.0550
http://www.cubix.com
sales@cubix.com
xprm8g3-825urp24-20181001
Xpander Rackmount 8
5URP24 User Guide
Front and Rear View
Overview
Xpander Rack Mount 8 5URP24 (XPRM8G3-5URP24) with Redundant Power (RP) supplies
and support for 24 x hot-plug drives is a rack mount PCI Express (PCIe) expansion enclosure
that enables connection of 8 double-wide PCIe Gen 3 x16 graphics or other controllers with
rear- or top-connected auxiliary power cables to one or two host computers. XPRM8G3-
5URP24 supports graphical processing units (GPUs) with active cooling and rear- or top-
connected auxiliary power cables. The host computer must have one or two PCIe x16 slot
(preferably PCIe Gen 3.0) available for the host interface controllers (HICs). Cubix designed
XPRM8G3-5URP24 to work with Host Engine 5URP24 (HE5URP24) as a system.
XPRM8G3-5URP24 provides two Main Interface Boards (MIBs) connected to two HICs in one
host computer or connected to one HIC in each of two host computers with a PCIe x16 cable.
Each MIB features four PCIe x16 slots to support a total of eight double-wide GPUs such as
NVIDIA Quadro or GeForce GTX Series as well as AMD Firepro W9100. Contact Cubix
Customer Service (
customerservice@cubix.com
) if you have questions.
XPRM8G3-5URP24 provides two sets of four PCIe x16 (for a total of eight) slots for GPUs for
use with high-performance computing (HPC) and other Compute Unified Device Architecture-
(CUDA-) or OpenCL / OpenGL-enabled applications. Rack Mount 8 also supports other PCIe
adapters with multiple Input / Output (IO) ports such as network adapters, RAID controllers,
USB 3.0 or high-definition (HD) audio.
To support the 24 x hot-plug Serial-Attached SCSI (SAS with 12Gbits / second or 12Gbps
transfer rate
) 2.5” SSDs or 3.5” hard-disk drives (HDDs) requires 1 x 24-port or 2 x 12-port SAS
(12Gbps) RAID controller(s) in one or two of the 8 x slots. Supporting the 24 x SAS drives
means Xpander will support only 6
– 7 x GPUs. Each RAID controller port connects to a 4-port
SAS backplane with a 1.0meter SFF-8643 mini-SAS to SFF-8643 mini-SAS HD cable, and in
turn, each 4-port SAS backplane connects to 4 x SAS HDDs for a total of 24 x HDDs in each
XPRM8G3-5URP24 chassis. When combined with the 24 x HDDs in HE5URP24, the two
chassis form a system with 48 x SAS HDDs. The total storage capacity is 48TBytes to
672TBytes, or 0.672PBytes, of direct-attached storage.
Each HE5URP24 and XPRM8G3-5URP24 also features a power supply with 3 + 1 hot-plug,
redundant power modules and 4 x hot-plug cooling fans. Each is also rack-mountable with a
tool-less access top cover.
