--- title: P1400GD-DLC — 1 x 400GbE PCIe NIC url: https://www.broadcom.com/products/ethernet-connectivity/network-adapters/p1400gd-dlc description: P1400GD-DLC is a direct liquid cooling ready, feature-rich single-port 400GbE PCIe Ethernet NIC. --- # P1400GD-DLC — 1 x 400GbE PCIe NIC **Direct Liquid Cooling Ready, Feature-Rich Single-Port 400GbE PCIe Ethernet NIC** - Check Inventory - [Contact Sales](https://www.broadcom.com/company/contact/sales) - [Overview](https://www.broadcom.com/products/ethernet-connectivity/network-adapters/p1400gd-dlc#overview) - [Specifications](https://www.broadcom.com/products/ethernet-connectivity/network-adapters/p1400gd-dlc#specifications) - [Documentation](https://www.broadcom.com/products/ethernet-connectivity/network-adapters/p1400gd-dlc#documentation) - [Downloads](https://www.broadcom.com/products/ethernet-connectivity/network-adapters/p1400gd-dlc#downloads) Based on the Broadcom® scalable 400G Ethernet controller, the P1400GD-DLC 400G NIC adapter is designed to support high-temperature environments that require direct liquid cooling (DLC), such as GPU server networking and artificial intelligence (AI) data centers. The P1400GD-DLC 400G NIC adapter inherits all the features of the standard Broadcom 400G NIC product line, making it ideal for any application that requires a high-performance, feature-rich Ethernet NIC adapter that is ready for direct liquid cooling. The P1400GD-DLC is distributed without a heatsink for the controller and connector cage, allowing for the application of a custom cold plate to be applied directly to the NIC ASIC and optical module. Broadcom provides all the necessary collateral to assist server vendors with the sizing and mechanical design of the cold plate for optimum thermal performance. Building on the success of the widely deployed Broadcom NIC architecture, the P1400GD-DLC adapter combines a high-bandwidth Ethernet controller with a unique set of highly optimized hardware acceleration engines to enhance network performance and improve server efficiency. | Title | Date | Download | Alert | | --- | --- | --- | --- | | BCM957608 400G Ethernet Adapters
Version:
DS102
Language:
English | 10/12/2026 | [Download](https://docs.broadcom.com/docs/957608-DS1XX)
(955.9 KB) | | | Title | Date | Download | Alert | | --- | --- | --- | --- | | 957608-P1400GD-DLC Product Brief
Version:
NA
Language:
English | 03/30/2026 | [Download](https://docs.broadcom.com/docs/957608-P1400GD-DLC-PB)
(264.3 KB) | | ## Features - DLC-ready PCIe NIC adapter - Single-port QSFP112-DD - 400-Gb/s aggregate bandwidth - 25 Gb/s to 400 Gb/s per port - PCIe Gen 5 x16 host interface - RoCEv2 - Secure boot and attestation - kTLS/QUIC inline encryption - TruFlow™ 400G flow offload - Peer Memory Direct - Standards-based system management ### Applications - GPU server networking (scale-out and front-end) - Artificial intelligence (AI) and machine learning (ML) - High-performance computing (HPC) - Cloud and enterprise data center server - Network functions virtualization (NFV) ### Lifecycle Status Active The following table outlines the required collateral available for cold plate design: | Collateral | Description | |------------------|----------------------------------------------------------------------------------------------| | Mechanical Files | Component size and placement information to design cold plate
STP files (3D Model) | | Thermal Mode | Thermal mode with information about critical components (regulators, oscillators, etc) | ## Popular Resources ### [Introduction to Congestion Control for RoCE White Paper](https://docs.broadcom.com/docs/NCC-WP1XX) Network congestion can only be resolved by detecting it and reducing the data delivery rate. | Specification | Value | |-------------------------|-------------------------------------------| | Lifecycle | Active | | Distributor Inventory | Yes | | Adapter Type | PCIe NIC | | ASIC | BCM57608 | | Connectors | QSFP112-DD | | OS Support | Red Hat Enterprise Linux, SUSE® Linux Enterprise Server, Ubuntu, DPDK | | Host Connector | PCIe 5.0 x 16 | | Link-Speeds | 400/200/100/50/25GbE | | Multi-Host | No | | NPAR | Yes | | Ordering Part # | BCM957608-P1400GDF30 | | Ports | 1 | | RoCEv2 | Yes | | TruFlow™ | Yes | | TruManage™ | Yes | ### Application Notes | Title | Date | Download | Alert | |------------------------------------------------------------|------------|-----------------------------------------------------|---------------| | BCM95750X/BCM957608: NVMe over Fabrics Application Note | 11/09/2026 | [Download](https://docs.broadcom.com/docs/95750X-957608-AN3XX) (599.7 KB) | | ### Data Sheet | Title | Date | Download | Alert | |-----------------------------------|------------|-----------------------------------------------------|---------------| | BCM957608 400G Ethernet Adapters | 10/12/2026 | [Download](https://docs.broadcom.com/docs/957608-DS1XX) (955.9 KB) | | ### Product Brief | Title | Date | Download | Alert | |------------------------------------|------------|-----------------------------------------------------|---------------| | 957608-P1400GD-DLC Product Brief | 03/30/2026 | [Download](https://docs.broadcom.com/docs/957608-P1400GD-DLC-PB) (264.3 KB) | | ### Release Notes | Title | Date | Download | Alert | |-------------------------------------|------------|-----------------------------------------------------|---------------| | Broadcom NetXtreme-E Release Notes | 10/08/2026 | [Download](https://docs.broadcom.com/docs/Release_Notes-239.1.170.0) (313.9 KB) | | ## Drivers | Title | Date | Download | Alert | | --- | --- | --- | --- | | Broadcom NetXtreme-E Linux Installer
Version:
239.1.170.0
OS
Linux
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/NXE_Linux_Installer-239.1.170.0)
(345.2 MB) | | | Broadcom NetXtreme-E FreeBSD Drivers
Version:
239.1.163.0
OS
FreeBSD
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/FreeBSD_Drivers-239.1.163.0)
(875.9 KB) | | | Broadcom NetXtreme-E ESXi Drivers
Version:
239.1.149.0
OS
ESXi
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/ESXi_Drivers-239.1.149.0)
(1.4 MB) | | | Broadcom NetXtreme-E Windows Drivers
Version:
239.1.141.0
OS
Windows
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/Windows_Drivers-239.1.141.0)
(1.4 MB) | | ## Firmware | Title | Date | Download | Alert | | --- | --- | --- | --- | | Broadcom NetXtreme-E Niccli Utility - Linux
Version:
239.1.170.0
OS
Linux
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/NXE_Linux_niccli_239.1.169.0)
(33.3 MB) | | | Broadcom NetXtreme-E Niccli Utility - FreeBSD
Version:
239.1.170.0
OS
FreeBSD
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/NXE_FreeBSD_niccli_239.1.169.0)
(6.9 MB) | | | Broadcom NetXtreme-E Niccli Utility - UEFI
Version:
239.1.170.0
OS
UEFI
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/NXE_UEFI_niccli_239.1.169.0)
(5.7 MB) | | | Broadcom NetXtreme-E Niccli Utility - Windows
Version:
239.1.170.0
OS
Windows
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/NXE_Windows_niccli_239.1.169.0)
(6.9 MB) | | | Broadcom NetXtreme-E Niccli Utility - ESXi
Version:
239.1.170.0
OS
ESXi
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/NXE_ESXi_niccli_239.1.169.0)
(25.4 MB) | | | Broadcom BCM57608 1x400G QSFP-DD DLC PCIe Ethernet NIC Firmware Image
Version:
239.1.170.0
Language:
English | 10/08/2026 | [Download](https://docs.broadcom.com/docs/BCM957608-P1400GDF30_FW_239.1.170.0)
(3.7 MB) | | ## Also of Interest - [P2200G Dual-Port 200GbE PCIe Ethernet NIC](https://www.broadcom.com/products/ethernet-connectivity/network-adapters/p2200g) - [N1400GD 400GbE PCIe 5.0 x16 OCP 3.0 Ethernet...](https://www.broadcom.com/products/ethernet-connectivity/network-adapters/n1400gd) - [P1400GD Single-Port 400G PCIe Ethernet NIC](https://www.broadcom.com/products/ethernet-connectivity/network-adapters/p1400g)