HPE Apollo 4500 x16 I/O Module Kit | 855128-B21

• Brand: HPE
• HPE Part Number: 855128-B21
• Product Name: HPE Apollo 4500 x16 I/O Module Kit
• Product Type: I/O Module
• Module Category: PCIe I/O Expansion
• PCIe x16 Slots: 1
• PCIe x8 Slots: 3
• Total PCIe Slots on Module: 4
• Primary System Family: HPE Apollo 4500
• Supported Model Apollo: 4520
• Server Node: HPE ProLiant XL450 Gen9
• Application: PCIe expansion for supported adapters
• Networking Support: Compatible PCIe network adapters
• InfiniBand Support: Compatible InfiniBand adapters
• Storage Support: Compatible PCIe storage controllers
• Accelerator Support: Compatible PCIe accelerator options
• Compatibility: Apollo 4520 / supported XL450 Gen9 configuration
• Related Option: 855129-B21 – HPE Apollo 4500 x8 I/O Module
• Procurement SKU: 855128-B21

Why Choose This Product?

• Correct HPE part identification: 855128-B21 precisely identifies the Apollo 4500 x16 I/O Module Kit.
• Four PCIe expansion slots: Provides one x16 and three x8 PCIe slots in the documented module configuration.
• Apollo 4520 compatibility: Specifically associated with the Apollo 4520, improving configuration accuracy during procurement.
• High-bandwidth expansion: The x16 slot provides a suitable expansion position for supported PCIe devices requiring x16 connectivity.
• Multiple adapter options: Three additional x8 slots increase flexibility for compatible networking, storage, and fabric adapters.
• HPC-ready architecture: Supports PCIe expansion used in high-performance computing and data-intensive infrastructure.
• OEM sourcing confidence: The HPE SKU simplifies quotation, inventory, BOM, and replacement-part identification.
• Clear model differentiation: Helps buyers distinguish the x16 module from the separate Apollo 4500 x8 I/O Module, 855129-B21.