Loop Controller External Enclosure for PCI Express Application

The PEX2PCIE4L PCI/PCI Express Expansion Chassis provides a quick and simple I/O expansion solution to almost any PCI Express (PCIe) enabled system. Adding PCI/PCIe cards to a server or workstation, or providing a platform to swap cards between a mobile and desktop setup is a cost-effective and time-saving solution for maximizing the I/O capabilities of your system.

The external expansion chassis adds two full-length (38cm) PCI slots (32-bit/33MHz), as well as two PCIe x1 (single-lane) slots to a host computer through a single PCI Express connection. Providing total bandwidth up to 250MBps from the PCIe x1 host controller card allows the computer to function as though the expansion chassis cards were connected directly to the motherboard.


  • Control the power state of connected PCI/PCIe cards with the self-powered chassis and easily accessible on/off button
  • Install additional cards without opening your computer with the provided external expansion card slots
  • Easy installation and support for small form-factor computers with an included low-profile/half-height bracket




Bus Type

PCI Express 

Card Type

Standard Profile (LP bracket incl.) 


PCI / PCI-X (5 / 3.3V) 

Port Style

Integrated on Card 


Maximum Data Transfer Rate

250 MBps 


135,012 Hours 


Connector Type(s)

1 - PCI Express x1 Male 

External Ports

2 - PCI / PCI-X (Universal 3.3 & 5V, 32-bit) Slot Female 


2 - PCI Express x1 Slot Female 


OS Compatibility

OS Independent; No additional drivers or software required 

Special Notes / Requirements


The Maximum power consumption of the adapter cards used in this expansion box is 36W. Cards might not function if their total power exceeds the maximum power consumption 


This product has a compatibility issue with Silicon Image SATA Controllers on an AMD platform 


Center Tip Polarity


Input Voltage

115V-230V AC 

Output Current


Output Voltage

12 DC 

Plug Type

Power Consumption (In Watts)


Power Source

AC Adapter Included 



5 to 95% RH 

Operating Temperature

0°C to 55°C (32°F to 131°F) 

Storage Temperature

-40°C to 75°C (-40° to 167°F) 

Physical Characteristics



Enclosure Type


Product Height

5.6 in [143 mm] 

Product Length

15 in [382 mm] 

Product Weight

4.4 lb [2 kg] 

Product Width

5.4 in [137 mm] 

Included in Package

1 - PCI Expansion box 


1 - PCI Express Card 


1 - 3 ft. DVI-D Cable 


1 - Low Profile Bracket 


1 - Screw Kit 


3 - Power Cord (NA/UK/EU) 


1 - Power Adapter 


1 - Software CD 


1 - Instruction Manual


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