Design
Product colour	Green
Purpose	PC
Certification	FCC,CE,CB
Internal
Operational conditions
Operating temperature (T-T)	0 - 50 °C
Operating relative humidity (H-H)	0 - 90%
Packaging data
Package width	132 mm
Package depth	136 mm
Package height	36 mm
Package weight	80 g
Ports & interfaces
Host interface	BTB
Host interface gender	Male
Output interface	HDMI
System requirements
Windows operating systems supported	Windows 11
Weight & dimensions
Weight	15.7 g

The Lenovo interface card with manufacturer number 4XH1K25074 is an integrated adapter specifically developed for expanding ThinkCentre Tiny systems. The device serves as an HDMI 2.0 expansion card and enables the connection of an additional HDMI output to selected PC models. The card features a BTB host interface (Board-to-Board), designed for connection to the main system board, and an HDMI output for external signal transmission. The product colour is green, typical for Lenovo system components, and the card is designed for use in PCs.

Applications

The card is intended for use in compact ThinkCentre systems, particularly in models such as the ThinkCentre M60q Chromebox, M70q Gen 3 to Gen 5, M75q Gen 5, M80q Gen 3 to Gen 4, M90q Gen 3 to Gen 5, M90s Gen 4, ThinkCentre neo Ultra, and ThinkStation P3 Tiny. These systems are characterised by small dimensions, which is why the card is referred to as a Tiny-8-Punch-Out-Port – it is integrated into a designated cutout in the housing to make the HDMI port visible and accessible. Thus, the card is an accessory for expanding connectivity options in compact workstations.

Functions and Equipment in Detail

The interface card provides an HDMI output, supporting video signal transmission up to 4K resolution, provided the connected graphics card and display also support this. The BTB host interface is female, meaning it connects to a male connector on the motherboard. The card is integrated and not operated as an external device, but is part of the internal system construction. The green product colour serves visual identification within the system and is compatible with Lenovo systems.

Technology Explained Simply

The card uses a BTB connection, enabling a direct, flat connection between two circuit boards. This technology is common in compact systems as it requires little space and ensures a stable electrical connection. The HDMI output allows the transmission of audio and video signals over a single cable, simplifying the connection of monitors, projectors, or other HDMI-compatible devices. The card is designed for operation in a temperature range of 0 to 50 °C and can be operated at a relative humidity of 0 to 90 %, making it suitable for use in typical office and working environments.

Compatibility and Accessories

The card is specifically developed for a range of Lenovo ThinkCentre models, including various generations of the M60q, M70q, M75q, M80q, M90q, and M90s series, as well as the ThinkCentre neo Ultra and ThinkStation P3 Tiny. Compatibility is limited to these models, as the BTB interface and physical installation solution (Tiny 8 Punch Out Port) are specifically designed for these systems. The card is not universal accessory, but a system-integrated module that only functions in the specified devices.

Installation and Mounting

Installation is performed by inserting the card into the designated cutout in the ThinkCentre system housing. The card connects to the motherboard via the BTB interface, with the female connector plugging onto the male connector on the board. Mounting requires no additional tools or components, as the card fits directly into the designated space. The physical dimensions are 39.5 mm width, 31.7 mm depth, and 1.6 mm height, enabling integration into small housings.

Operational Advantages

The card expands the connectivity options of compact ThinkCentre systems without compromising their compact design. Integration occurs via the Tiny 8 Punch Out Port, making the HDMI port directly accessible on the housing. Support for Windows 11 ensures compatibility with current operating systems. Certifications FCC, CE, and CB confirm compliance with relevant safety and emission standards for use in Europe and other markets. The card is thus a reliable and standard-compliant accessory for expanding ThinkCentre systems.

Certification and Operating Conditions

The card meets certifications FCC, CE, and CB, confirming compliance with applicable electromagnetic compatibility and safety regulations. Operating conditions include a temperature range of 0 to 50 °C and relative humidity of 0 to 90 %, enabling reliable operation in typical office and working environments. The card is designed for use in PCs and supports the operating system Windows 11.

Weight and Dimensions

The device weighs 15.7 g and has dimensions of 39.5 mm (width) × 31.7 mm (depth) × 1.6 mm (height), making it extremely compact. The packaging has a width of 132 mm, depth of 136 mm, and height of 36 mm, with a package weight of 80 g. The card is delivered in a box, with a quantity per pack of 1 piece.

System Requirements

The card is designed for use with Windows 11. The card is not a standalone device, but an accessory that is integrated into an existing system.