
HighPoint External CopprLink PCIe Architecture: The New Breakthrough for Disaggregated AI & HPC
Native Gen5 x16 Performance. Standardized CopprLink Connectivity. Scalable 2-Meter Reach.
Uncompromising Native Performance
HighPoint External CopprLink PCIe Architecture is built upon the PCI-SIG CopprLink (CDFP) specification (SFF-TA-1032), providing a truly vendor-neutral hardware environment for the next generation of data center infrastructure.This architecture provides a seamless, high-performance bridge between three critical points:
The Host: Intelligent Switching/Retimer Adapters
The Pathway: Gen5 x16 CopprLink Cabling
The Node: Active, Retimer/ Switching-equipped Expansion Enclosures. By adhering to this open industry standard, our architecture effectively addresses the most stringent requirements of high-TDP accelerators. For the first time, architects can confidently configure external PCIe devices—from NVIDIA H200 GPUs to massive NVMe arrays—without the performance compromises of proprietary or "tunneled" protocols. HighPoint’s active signal management ensures that even at a 2-meter cable length, you receive dedicated, uncompromised PCIe Gen5 x16 bandwidth (64GB/s) to ensure your external resources operate as if they were seated directly on the host motherboard.



How CopprLink™ Transforms Your Target Applications
The shift to disaggregated server nodes is no longer a luxury; it is a thermal and power necessity. CopprLink provides the standardized "Fabric Backbone" required for:

AI/ML Training: Offload high-TDP GPUs to external enclosures to optimize thermal management without introducing latency bottlenecks.

HPC & Scientific Modeling: Create a direct, high-bandwidth pathway between compute nodes and massive external datasets.

Media & Entertainment: Deliver sustained 64GB/s throughput for real-time 8K/12K uncompressed video production and rendering.

Disaggregated Storage: Connect external NVMe JBOF arrays with native driver support and zero protocol overhead.
Introducing HighPoint External CopprLink PCIe Gen5 Adapters
Engineered as the "Host Anchor" for your external fabric, the Rocket 7 series provides industry-leading switching and connectivity.
Rack-Scale Compute Expansion: Extend Your PCIe Fabric with High-Fidelity, External Gen5 Connectivity
As AI and HPC workloads scale, they often outgrow the physical, thermal, and power limitations of a single server chassis. HighPoint’s Gen5 External and Hybrid CopprLink™ Adapters are engineered to bridge this gap, extending your high-speed switching fabric beyond the box without sacrificing a single nanosecond of performance.
RocketStor 763x Series Adapters utilize the industry-standard CopprLink™ (SFF-TA-1016/CDFP) interface, and are capable of delivering the fastest external connectivity available in today’s marketplace. By maintaining a pure PCIe Gen5 signal at 32 GT/s, they allow for "Chassis-Agnostic" compute—enabling external GPU racks and FPGA clusters to operate as if they were seated directly on the host motherboard.

The Advantage of External Switching: Composable Infrastructure
Traditional external PCIe expansion often relies on complex, high-latency bridging protocols. HighPoint’s approach is different; our proven 48-lane PCIe Gen5 switching architecture ensures that the external connection is a transparent extension of the PCIe bus.

Dedicated Gen5 x16 Per Port: Unlike standard expanders that share bandwidth across multiple outputs, each CDFP/CopprLink port provides a dedicated x16 bus. This ensures maximum throughput for every connected accelerator, even when all ports are under 100% load.
Seamless Direct P2P: Maintain Point-to-Point I/O between internal accelerators and external expansion units, bypassing the host CPU to eliminate latency.
Industry-Leading Signal Integrity: Designed specifically for the rigorous electrical demands of Gen5, our adapters use premium CDFP/CopprLink connectors to prevent signal degradation over distance.
Unified Management: Manage both internal and external compute resources as a single, cohesive fabric through our integrated switching logic.
Seamless Plug & Play Deployment - supported by Native PCIe Bus Drivers: due to strict adherence to industry-standard PCIe protocols, these adapters are inherently Plug & Play across all mainstream operating systems (Windows, Linux, and macOS). This support is not limited to storage; any PCIe device—from GPUs and FPGAs to high-speed NICs—will be recognized and managed by the OS immediately, ensuring seamless integration into any professional environment.
The Product Lineup: External & Hybrid Specialization

Rocket 7638D – The Versatile Hybrid Bridge
Interface: 1x x16 External CopprLink™ + 2x x8 Internal MCIO Ports
Throughput: A flexible 48-lane distribution for simultaneous internal and external I/O.
Target Application: The ideal solution for architects who need to manage an internal boot array or accelerator while simultaneously connecting to an external Gen5 compute enclosure from a single PCIe slot.

Rocket 7634D – Precision External Gateway
Interface: 1x x16 External CopprLink™ (CDFP) Port
Throughput: Dedicated Gen5 x16 path to a single external node.
Target Application: Optimized for professional workstations and mobile HPC rigs requiring a high-integrity link to a single external eGPU or FPGA enclosure.
Feature | Rocket 7634D | Rocket 7638D |
|---|---|---|
Connectivity | Pure External Host Link | Hybrid Internal/External Link |
Interface | PCIe Gen5 x16 | PCIe Gen5 x16 |
Connectors | 1x External CDFP (CopprLink™) | 1x External CDFP + 2x Internal MCIO |
Throughput | Dedicated 64GB/s | Dedicated 64GB/s (CDFP) + Scalable NVMe |
Best For | External GPU/Accelerator Nodes | Direct GPU-to-NVMe Fabric Solutions |
Compatibility | x86 (Intel/AMD) & ARM | x86 (Intel/AMD) & ARM |
Why Choose CopprLink for AI and HPC?
For today's enterprise grade PCIe devices and accelerators, connection is critical. HighPoint’s adoption of the CopprLink standard provides several key advantages for IT experts:
Low Insertion Loss: Engineered for the 32 GT/s requirements of Gen5, ensuring the PCIe clock signal remains stable without the need for expensive, high-latency active cabling in most standard rack distances.
High-Retention Connectivity: CDFP/CopprLink connectors are designed for enterprise environments, offering secure, vibration-resistant latching that prevents accidental disconnects in dense rack configurations.
Future-Proof Standardization: As an industry-standard interface (SNIA SFF-TA-1016), CopprLink ensures compatibility with a growing ecosystem of Gen5 enclosures and devices, and is future-proofed for the advent of PCIe Gen 6.
Versatile Cable Design - the Robust CDFP/CopprLink cables are available in lenghts up to 2M to ease deployment and integration
The HighPoint CopprLink Ecosystem
A standard is only as strong as its ecosystem. HighPoint provides a "whole-body" solution to ensure your Gen5 signal remains clean from the CPU to the Device.

The Brain (Adapter): Rocket 7600 Series Host Links with Broadcom switching technology to isolate and manage I/O.

The Nervous System (Cabling): Certified Gen5 x16 CopprLink-CDFP) cables ensure signal integrity up to 2 meters.

The Muscle (Expansion Chassis): RocketStor 8631D Enclosures featuring integrated Astera Labs active retimers to regenerate the signal at the endpoint.
Open for OEM & Custom Enclosure Projects
HighPoint is more than a vendor; we are a strategic partner. Our External Active PCIe Architecture is designed for rapid integration into specialized OEM platforms.
We provide:
Verified Hardware: Pre-validated Switching and Retimer configurations.
Firmware Customization: Tailored BIOS/Firmware to meet unique system handshake and timing requirements.
Expert Technical Support: Direct access to our engineering teams to accelerate your time-to-market.
Learn More:
CopprLink™: The New Standardized Language of Gen5 Connectivity
PCIe Disaggregation 101: Why the Server Chassis is Shrinking
The 3 Pillars of HighPoint’s External CopprLink™ Architecture
Passive vs. Active: Why Signal Integrity is the Silent Performance Killer
Resources
HighPoint NVMe Switch Adapters and Systems from our Partners
PCIe Switch Adapter Product Lines
Product | Image | PCle | Ports | of Devices | Hot-Swap | SSD FF |
|---|---|---|---|---|---|---|
Rocket 7634D | PCIe 5.0 x16 | 1x CDFP | 1x CopprLink Device | n/a | Supports CopprLink compliant NVMe enclosures | |
Rocket 7638D | PCIe 5.0 x16 | 1 x CDFP;
2 x MCIO 8x | Up to 16x NVMe SSDs / 1x eGPU | Yes (MCIO ports) | Direct Connect U.2/U.3/E3.S; Backplane Connection: ESDFF devices such as U.2/U.3/E1.S/E3.S |
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