BECKHOFF

BECKHOFF C9900-E251 Slotbox for Extending Industrial PCs

SKU C9900-E251

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: BECKHOFF
  • Product No.: C9900-E251
  • Origin Germany
  • Product Type: Industrial PC Extensions
  • Payment: T/T, Western Union
  • Weight: 1.7 kg
  • Dimensions: 94 mm x 222 mm x 132 mm
  • Shipping port: Xiamen
  • Warranty: 12 months

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Product Description

Description

Designed for robust industrial environment expansion, the Beckhoff C9900-E251 slotbox allows operators to extend compatible Beckhoff Industrial PCs with two additional plug-in card slots. This expansion unit is constructed with a fanless aluminum housing engineered specifically for space-saving control cabinet installation. It establishes a high-speed link with the host controller via a PCIe x1 interface, requiring a matching PCIe module (such as the C9900-E236 or C9900-E239) installed within the primary PC. By facilitating remote slot placement, the C9900-E251 provides flexibility in layout configuration and system hardware scaling without upgrading the primary PC chassis.

Features

  • Sturdy, fanless aluminum housing ideal for demanding control cabinet environments.
  • Provides 2 physical PCI slots for accommodating plug-in cards up to 190 mm in length.
  • Facilitates remote expansion up to a maximum distance of 7 meters from the host Industrial PC.
  • Top-facing connector arrangement allows optimized cable routing and convenient integration in standard control panels.
  • Operates on a standard industrial 24 V DC power supply input.

Applications

  • Control cabinet hardware expansion for decentralized industrial PC architectures.
  • Integration of specialized legacy PCI communication, measurement, or control cards.
  • Distributed system monitoring and data acquisition setups in manufacturing plants.

Technical Specifications

Manufacturer Beckhoff Automation
Model / Part Number C9900-E251
Product Type Slotbox for Industrial PC expansion
Housing Material Fanless aluminum housing
Mounting Type Control cabinet installation
Expansion Slots 2 PCI slots (supports card lengths up to 190 mm)
Host Interface PCIe x1 input
Compatible Host Modules Beckhoff C9900-E236 or C9900-E239 PCIe modules
Maximum Connection Distance 7 meters
Power Supply 24 V DC
Protection Rating IP20
Operating Temperature 0 to 55 degC
Dimensions (W x H x D) 94 mm x 222 mm x 132 mm (without mounting plate)
Weight 1.7 kg (without plug-in cards)

Connections and Interfaces

Interface Type Function / Description
PCIe x1 Input Connection port to link with the host Industrial PC via compatible extension cable
Power Terminal 24 V DC connection point for main operational power
PCI Slots (x2) Internal slots for mounting and interfacing plug-in expansion boards

Installation Guidelines

  • Mounting: Mount secure inside a clean, dry control cabinet using the specified mounting plate assembly.
  • Wiring Layout: Keep all cabling accessible from the top. Maintain minimum clearance surrounding the fanless housing to promote natural convection cooling.
  • Cable Distance: Ensure the PCIe connection cable to the host Industrial PC does not exceed the maximum certified length of 7 meters to prevent signal degradation.
  • Grounding: Always establish a low-impedance functional ground connection to the slotbox chassis to protect integrated expansion cards against electromagnetic interference (EMI).
Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What is the purpose of the Beckhoff C9900-E251 slotbox?
The C9900-E251 is designed to extend Beckhoff Industrial PCs by providing two additional PCI slots for plug-in cards up to 190 mm long, housed in a separate, fanless enclosure.
Which interface modules are required on the host PC to use the C9900-E251?
The slotbox connects via a PCIe x1 interface and requires the host Industrial PC to be equipped with a PCIe module such as the C9900-E236 or C9900-E239.
What is the maximum cable distance supported between the host PC and the slotbox?
The maximum connection distance supported between the host Industrial PC and the C9900-E251 slotbox is 7 meters.
What type of power supply does the C9900-E251 require?
The slotbox operates on a standard industrial 24 V DC power supply.
What is the ingress protection rating of this expansion slotbox?
The unit features an IP20 protection rating, suitable for control cabinet environments.
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C9900-E251

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BECKHOFF C9900-E251 Slotbox for Extending Industrial PCs

Only 10 item(s) left in stock
  • Manufacturer: BECKHOFF

  • Product No.: C9900-E251

  • Country of origin:Germany

  • Product Type: Industrial PC Extensions

  • Payment: T/T, Western Union

  • Weight: 1700g

  • Dimensions: 94 mm x 222 mm x 132 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

Quantity
View full details

Description

Designed for robust industrial environment expansion, the Beckhoff C9900-E251 slotbox allows operators to extend compatible Beckhoff Industrial PCs with two additional plug-in card slots. This expansion unit is constructed with a fanless aluminum housing engineered specifically for space-saving control cabinet installation. It establishes a high-speed link with the host controller via a PCIe x1 interface, requiring a matching PCIe module (such as the C9900-E236 or C9900-E239) installed within the primary PC. By facilitating remote slot placement, the C9900-E251 provides flexibility in layout configuration and system hardware scaling without upgrading the primary PC chassis.

Features

  • Sturdy, fanless aluminum housing ideal for demanding control cabinet environments.
  • Provides 2 physical PCI slots for accommodating plug-in cards up to 190 mm in length.
  • Facilitates remote expansion up to a maximum distance of 7 meters from the host Industrial PC.
  • Top-facing connector arrangement allows optimized cable routing and convenient integration in standard control panels.
  • Operates on a standard industrial 24 V DC power supply input.

Applications

  • Control cabinet hardware expansion for decentralized industrial PC architectures.
  • Integration of specialized legacy PCI communication, measurement, or control cards.
  • Distributed system monitoring and data acquisition setups in manufacturing plants.

Technical Specifications

Manufacturer Beckhoff Automation
Model / Part Number C9900-E251
Product Type Slotbox for Industrial PC expansion
Housing Material Fanless aluminum housing
Mounting Type Control cabinet installation
Expansion Slots 2 PCI slots (supports card lengths up to 190 mm)
Host Interface PCIe x1 input
Compatible Host Modules Beckhoff C9900-E236 or C9900-E239 PCIe modules
Maximum Connection Distance 7 meters
Power Supply 24 V DC
Protection Rating IP20
Operating Temperature 0 to 55 degC
Dimensions (W x H x D) 94 mm x 222 mm x 132 mm (without mounting plate)
Weight 1.7 kg (without plug-in cards)

Connections and Interfaces

Interface Type Function / Description
PCIe x1 Input Connection port to link with the host Industrial PC via compatible extension cable
Power Terminal 24 V DC connection point for main operational power
PCI Slots (x2) Internal slots for mounting and interfacing plug-in expansion boards

Installation Guidelines

  • Mounting: Mount secure inside a clean, dry control cabinet using the specified mounting plate assembly.
  • Wiring Layout: Keep all cabling accessible from the top. Maintain minimum clearance surrounding the fanless housing to promote natural convection cooling.
  • Cable Distance: Ensure the PCIe connection cable to the host Industrial PC does not exceed the maximum certified length of 7 meters to prevent signal degradation.
  • Grounding: Always establish a low-impedance functional ground connection to the slotbox chassis to protect integrated expansion cards against electromagnetic interference (EMI).

What is the purpose of the Beckhoff C9900-E251 slotbox?

The C9900-E251 is designed to extend Beckhoff Industrial PCs by providing two additional PCI slots for plug-in cards up to 190 mm long, housed in a separate, fanless enclosure.

Which interface modules are required on the host PC to use the C9900-E251?

The slotbox connects via a PCIe x1 interface and requires the host Industrial PC to be equipped with a PCIe module such as the C9900-E236 or C9900-E239.

What is the maximum cable distance supported between the host PC and the slotbox?

The maximum connection distance supported between the host Industrial PC and the C9900-E251 slotbox is 7 meters.

What type of power supply does the C9900-E251 require?

The slotbox operates on a standard industrial 24 V DC power supply.

What is the ingress protection rating of this expansion slotbox?

The unit features an IP20 protection rating, suitable for control cabinet environments.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Germany

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