IBM 43W4390 PCI I/O Expansion Unit

IBM 43W4390 PCI I/O Expansion Unit
IBM 43W4390 PCI I/O Expansion Unit
The IBM 43W4390 PCI I/O Expansion Unit is a versatile add-on card designed to extend the input/output capabilities of compatible IBM server platforms. Engineered for high reliability and ease of integration, this expansion unit provides additional PC... Read More
$659.95

Ships from outside of the USA. Please allow up to 2 weeks for delivery.

  • In Stock: 1
  • Manufacturer: IBM
  • Model or Part: 43W4390
  • Condition: Refurbished
  • Weight: 12.00lb
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Item Condition

New - Sealed or Open Box Condition
Excellent - Almost-New, Missing Original Packaging
Refurbished - Seller Refurbished, Good Condition, Previously Used Item

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Overview

The IBM 43W4390 PCI I/O Expansion Unit is a versatile add-on card designed to extend the input/output capabilities of compatible IBM server platforms. Engineered for high reliability and ease of integration, this expansion unit provides additional PCI slots that enable you to connect more network adapters, storage controllers, or specialized peripheral cards without compromising system performance.

Key Features

  • Provides up to four full-height PCI slots in a single low-profile form factor
  • Supports hot-plug operation for minimal downtime during upgrades
  • Delivers high data throughput with 32-bit, 33MHz bus architecture
  • Compatible with IBM System x and BladeCenter chassis that support standard PCI expansion
  • Built-in power management to reduce overall energy consumption
  • Robust aluminum shielding for enhanced electromagnetic interference protection

Technical Specifications

  • Model/Part Number: 43W4390
  • Form Factor: Low profile, single-slot card
  • Bus Interface: PCI 32-bit, 33MHz
  • Number of Slots: Four standard PCI slots (full height)
  • Power Requirements: 5V and 12V rails from host system
  • Operating Temperature Range: 0 to 55 degrees Celsius
  • Dimensions: Approx. 180 mm x 110 mm x 30 mm (L x W x H)
  • Compliance: FCC Class B, CE Marked

Applications

This expansion unit is ideal for data center environments, enterprise servers, and high-performance computing clusters where additional I/O bandwidth is required. Typical use cases include:

  • Adding extra network interface cards for enhanced connectivity or redundancy
  • Connecting additional RAID controllers to increase storage capacity and performance
  • Integrating specialized accelerator cards such as FPGA or GPU adapters
  • Expanding serial, USB, or legacy I/O ports for industrial automation systems
  • Supporting test and development rigs that need multiple peripheral interfaces

By leveraging the IBM 43W4390 PCI I/O Expansion Unit, organizations can future-proof their server investments, improve scalability, and maintain high levels of system uptime.