Product Type | PCIe Pass-through Module |
Form Factor | OCP Mezzanine Card |
Application | Enterprise Server Connectivity |
Compatible Interface | PCIe |
Module Type | Mezzanine Adapter |
Power Requirements | Supplied via host server |
Installation | Tool-less for compatible chassis |
Passive/Active | Passive (no active components) |
Lenovo PCBA+MECH OCP MEZZ PCIe Pass Module, 4C57A79744
Key Benefits

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- Optimized for systems using Open Compute infrastructure, ensuring future-ready integration
- Combines PCBA and mechanical elements for increased assembly reliability and compatibility
- Enhances PCIe expansion capabilities, improving system throughput and flexibility
Product Overview
The Lenovo PCBA+MECH OCP MEZZ PCIe Pass Module, part number 4C57A79744, is engineered for systems requiring robust interconnectivity through the OCP mezzanine format. Operating as a PCIe pass-through accessory, it allows direct and efficient PCIe signal transmission within enterprise hardware configurations. Integration of PCBA and mechanical hardware ensures secure installation and steady performance in dedicated environments.
This accessory is ideal for scalable architectures that utilize Open Compute infrastructure, supporting flexible designs and maximizing existing hardware. While further specifications are unavailable, the product serves as a valuable component for expanding high-speed peripheral connectivity. Details about compliance and country of origin remain unverified and may require confirmation for specific procurement standards.
Specifications
Product Overview
Physical & Environmental
Module Dimensions | Approx. 3.6 x 6.0 in (92 x 152 mm) |
Operating Temperature Range | 10°C to 35°C (50°F to 95°F) |
Storage Temperature Range | -40°C to 70°C (-40°F to 158°F) |
Relative Humidity (Operating) | 8% to 80% non-condensing |
Relative Humidity (Non-operating) | 5% to 95% |
Weight | Approx. 150 g (0.33 lbs) |
Mounting Type | Server-integrated via mezzanine slot |
Cooling Requirements | Relies on host system airflow |
Cloud Management & Licensing
Management Interface | Not applicable (passive module) |
Cloud Management | Not applicable |
Licensing Requirement | No license required |
Firmware Included | No firmware (passive hardware) |
Interfaces
Interface Type | PCIe Pass-through |
Number of PCIe Lanes Supported | 16 |
Port Type | OCP Mezzanine edge connector |
Standard Interface Protocol | PCI Express 3.0 or 4.0 (host dependent) |
Electrical Interface | High-speed interconnect |
Compatible Host Systems | Lenovo servers with OCP slots |
Compliance & Origin
TAA Compliance | Inquire |
Country of Origin (COO) | Inquire |
RoHS Compliance | Yes |
Reach Compliant | Yes |
UL Certification | Yes |
CE Mark | Yes |
WEEE Compliance | Yes |
Environmental Certification | Lenovo Environmentally Certified Hardware |
Advanced Security Features
Security Functionality | Hardware-level signal pass-through only |
Tamper Detection | No |
Data Encryption | Not supported at this hardware level |
Firewall Support | None (pass-through module) |