The Open Compute Project (OCP) is an organization that facilitates the sharing of data center product designs and industry best practices among companies.

[1] As of February 2025, over 400 companies across the world are members of OCP, including Arm, Meta, IBM, Wiwynn, Intel, Nokia, Google, Microsoft, Seagate Technology, Dell, Rackspace, Hewlett Packard Enterprise, NVIDIA, Cisco, Goldman Sachs, Fidelity, Lenovo, Accton Technology Corporation and Alibaba Group.

In addition to Mark Roenigk who represents Facebook, other organizations on the Open Compute board of directors include Intel (Rebecca Weekly), Microsoft (Kushagra Vaid), Google (Partha Ranganathan), and Rackspace (Jim Hawkins).

[11] However, some aspects published were used in Facebook's Prineville data center to improve energy efficiency, as measured by the power usage effectiveness index defined by The Green Grid.

[14][15] OCP Accelerator Module (OAM) is a design specification for hardware architectures that implement artificial intelligence systems that require high module-to-module bandwidth.

Compute chassis sizes are defined in multiples of an OpenU or OU, which is 48 mm, slightly taller than the typical 44mm rack unit.

[18][19] Specifications for the power monitoring interface (PMI), a communications interface enabling upstream communications between the rectifiers and battery backup unit(BBU) were published by Meta that same year, with Delta Electronics as the main technical contributor to the BBU spec.

[21] At the same meeting, Delta Electronics and Advanced Energy introduced their progress in developing new Open Compute standards specifying power shelf and rectifier designs for these HPR applications.

[26][27] At the OCP Summit 2016 Facebook together with Taiwanese ODM Wistron's spin-off Wiwynn introduced Lightning, a flexible NVMe JBOF (just a bunch of flash), based on the existing Open Vault (Knox) design.

[40][41] In March, 2015,[42] BladeRoom Group Limited and Bripco (UK) Limited sued Facebook, Emerson Electric Co. and others alleging that Facebook has disclosed BladeRoom and Bripco's trade secrets for prefabricated data centers in the Open Compute Project.