{"id":6876,"date":"2026-10-02T15:09:23","date_gmt":"2026-10-02T14:09:23","guid":{"rendered":"https:\/\/www.unitronix.co.uk\/site\/?page_id=6876"},"modified":"2026-10-02T15:09:23","modified_gmt":"2026-10-02T14:09:23","slug":"pcie-expansion","status":"publish","type":"page","link":"https:\/\/www.unitronix.co.uk\/site\/pcie-expansion\/","title":{"rendered":"PCIe Expansion"},"content":{"rendered":"

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PCIe Expansion Systems<\/h1>\n<\/div>
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One Stop Systems expansion products extend ultra-high-speed PCIe fabrics beyond the chassis to dynamically pool AI inference accelerators. Their composable architecture eliminates supply-chain-constrained hardware redundancies like duplicate CPUs and memory. By allocating high-throughput compute exactly where needed, they maximise compute density, lower system lifecycle costs and drive zero-latency edge inference.<\/p>\n<\/div><\/div><\/div>

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Call Us<\/h2><\/a><\/div><\/div><\/div>
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Email Us<\/h2><\/a><\/div><\/div><\/div>
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Tell Us What You need<\/h2><\/a><\/div><\/div><\/div>
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Gen5 4U Pro<\/h3><\/div>
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4U short-depth PCIe 5.0 expansion chassis, supporting up to 8x double-wide 350W GPUs, or up to 16x single-wide x8 cards. With two PCIe 5.0 x16 uplinks, this PCIe expansion chassis connects to any existing server with 1Tb\/s bandwidth.<\/p>\n

– 20″ Depth
\n– 4x or 8x PCIe 5.0 x16 FHFL double-wide expansion slots
\n– 8x or 16x PCIe 5.0 x8 FHFL single-wide expansion slots
\n– Single or dual PCIe 5.0 server uplinks included
\n– System management & monitoring capabilities
\n– Automatic temperature controlled fan-speed
\n– MIL-STD-810H certified<\/p>\n<\/div><\/div><\/div>

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Gen5 4U Pro MAX<\/h3><\/div>
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4U short-depth PCIe 5.0 expansion chassis, supporting up to 8x double-wide 675W add-in-cards, like GPUs. With two PCIe 5.0 x16 uplinks, this PCIe expansion chassis connects to any existing server with 1Tb\/s bandwidth.<\/p>\n

– 20″ Depth
\n– 8x PCIe 5.0 x16 FHFL double-wide expansion slots
\n– Dual PCIe 5.0 server uplinks included
\n– System management & monitoring capabilities
\n– Automatic temperature controlled fan-speed
\n– MIL-STD-810H certified<\/p>\n<\/div><\/div><\/div>

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Gen4 4UP<\/h3><\/div>
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4U short-depth PCIe 4.0 expansion chassis, supporting up to 8x double-wide 350W GPUs, or up to 16x single-wide x8 cards. With two PCIe 4.0 x16 uplinks, this PCIe expansion chassis connects to any existing server with 512Gb\/s bandwidth.<\/p>\n

– 20″ Depth
\n– 4x or 8x PCIe 4.0 x16 FHFL double-wide expansion slots
\n– 8x or 16x PCIe 4.0 x8 FHFL single-wide expansion slots
\n– Single or dual PCIe 4.0 server uplinks included
\n– System management & monitoring capabilities
\n– Automatic temperature controlled fan-speed
\n– MIL-STD-810H certified<\/p>\n<\/div><\/div><\/div>

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PCIe Cable Adapters<\/strong><\/p><\/h1><\/div>

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Gen6 x16 Cable Adapter<\/h3><\/div>
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PCIe 6.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints, providing RDMA connectivity to NVMe drives, GPUs, FPGAs and more.<\/p>\n

– PCIe 6.0 x16 (1.0TB\/s bandwidth)
\n– Supports CopperLink cables up to 3-meters
\n– low-profile, half-length form factor<\/p>\n<\/div><\/div><\/div>

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Gen5 x16 Cable Adapter (QSFP-DD ports)<\/h3><\/div>
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PCIe 5.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints.<\/p>\n

– PCIe 5.0 x16 (512Gb\/s bandwidth)
\n– Supports dual QSFP-DD cables
\n– low-profile, half-length form factor<\/p>\n<\/div><\/div><\/div>

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Gen5 x16 Cable Adapter (CDFP ports)<\/h3><\/div>
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PCIe 5.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints.<\/p>\n

– PCIe 5.0 x16 (512Gb\/s bandwidth)
\n– Supports dual CDFP cables
\n– low-profile, half-length form factor<\/p>\n<\/div><\/div><\/div>

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Gen4 x16 Cable Adapter<\/h3><\/div>
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PCIe 4.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints.<\/p>\n

– PCIe 4.0 x16 (256Gb\/s bandwidth)
\n– Supports quad miniSAS cables with SFF-8644 connectors
\n– low-profile, half-length form factor<\/p>\n<\/div><\/div><\/div>

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Gen3 x16 Cable Adapter<\/h3><\/div>
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PCIe 3.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints.<\/p>\n

– PCIe 3.0 x16 (128Gb\/s bandwidth)
\n– Supports quad miniSAS cables with SFF-8644 connectors
\n– low-profile, half-length form factor<\/p>\n<\/div><\/div><\/div>

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PCIe Expansion Backplanes<\/strong><\/p><\/h1><\/div>

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Gen5 Expansion Backpane (5x PCIe x16 slots)<\/h3><\/div>
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PCIe expansion backplane with 5x PCIe 5.0 x16 slots. Supports up to 4x double-wide x16 add-in-cards, like GPUs.<\/p>\n

\u2013 Five downstream PCIe 5.0 x16 expansion slots
\n\u2013 One upstream PCIe 5.0 x16 uplink connection
\n\u2013 Optional bifurcation to support two PCIe 5.0 x16 uplinks<\/p>\n<\/div><\/div><\/div>

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Gen5 Expansion Backpane (8x PCIe x8 slots)<\/h3><\/div>
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PCIe expansion backplane with 8x PCIe 5.0 x8 slots. Supports up to 8x single-wide x8 add-in-cards.<\/p>\n

– Eight downstream PCIe 5.0 x8 expansion slots
\n– One upstream PCIe 5.0 x16 uplink connection<\/p>\n<\/div><\/div><\/div>

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Gen4 Expansion Backpane (5x PCIe x16 slots)<\/h3><\/div>
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PCIe expansion backplane with 5x PCIe 4.0 x16 slots. Supports up to 4x double-wide x16 add-in-cards, like GPUs.<\/p>\n

– Five downstream PCIe 4.0 x16 expansion slots
\n– One upstream PCIe 4.0 x16 uplink connection
\n– Optional bifurcation to support two PCIe 4.0 x16 uplinks<\/p>\n<\/div><\/div><\/div>

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Gen4 Expansion Backpane (8x PCIe x8 slots)<\/h3><\/div>
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PCIe expansion backplane with 8x PCIe 4.0 x8 slots. Supports up to 8x single-wide x8 add-in-cards.<\/p>\n

– Eight downstream PCIe 4.0 x8 expansion slots
\n– One upstream PCIe 4.0 x16 uplink connection<\/p>\n<\/div><\/div><\/div>

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Gen3 Expansion Backpane (5x PCIe x16 slots)<\/h3><\/div>
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PCIe expansion backplane with 5x PCIe 3.0 x16 slots. Supports up to 4x double-wide x16 add-in-cards, like GPUs.<\/p>\n

– Five downstream PCIe 3.0 x16 expansion slots
\n– One upstream PCIe 3.0 x16 uplink connection
\n– Optional bifurcation to support two PCIe 3.0 x16 uplinks<\/p>\n<\/div><\/div><\/div>

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Gen3 Expansion Backpane (8x PCIe x8 slots)<\/h3><\/div>
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PCIe expansion backplane with 8x PCIe 3.0 x8 slots. Supports up to 8x single-wide x8 add-in-cards.<\/p>\n

– Eight downstream PCIe 3.0 x8 expansion slots
\n– One upstream PCIe 3.0 x16 uplink connection<\/p>\n<\/div><\/div><\/div>

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PCIe Expansion Cables<\/strong><\/p><\/h1><\/div>

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Gen5 x8 QSFP-DD cables<\/h3><\/div>
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PCIe 5.0 x8 cables with QSFP-DD connectors. Up to 3-metres.<\/p>\n<\/div><\/div><\/div>

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miniSAS x4 cables<\/h3><\/div>
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PCIe 3.0 and PCIe 4.0 compatable copper cables with SFF-8644 connectors. Up to 3-metres.<\/p>\n<\/div><\/div><\/div>

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miniSAS x4 cables (Optical)<\/h3><\/div>
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PCIe 3.0 and PCIe 4.0 compatable active optical cables with SFF-8644 connectors. Up to 100-metres.<\/p>\n<\/div><\/div><\/div>

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