Design
Purpose	Server
Cooling type	Passive
Certification	BSMI，CE,Morocco，FCC,IC,VCCI
Internal
Hot-Plug support
Operational conditions
Operating temperature (T-T)	0 - 50 °C
Operating relative humidity (H-H)	20 - 80%
Packaging data
Package width	177 mm
Package depth	144 mm
Package height	53 mm
Package weight	400 g
Package type	Box
Ports & interfaces
Host interface	PCIe
Host interface gender	Male
Output interface	Mini DisplayPort, Thunderbolt 4
Power
Power consumption (typical)	45 W
Weight & dimensions
Width	144.8 mm
Depth	68.9 mm
Height	22 mm
Weight	100 g

The Lenovo interface card with manufacturer number 4XF1L53431 is an internal PCIe module, specifically designed for use in server systems. The device serves as an expansion card to integrate Thunderbolt 4 and Mini DisplayPort interfaces into ThinkStation workstations. The card connects via a PCIe interface in the host system and features a male connector that is inserted into a corresponding PCIe slot. The output interfaces include one Thunderbolt 4 port and one Mini DisplayPort, with the card operating via an integrated Maple Ridge controller that enables connection to an external monitor and internal graphics cards via Mini DisplayPort. An additional internal Thunderbolt 4 port is provided to support future applications such as connections via a TBT bridge or hub.

Applications

The card is primarily intended for use in server and workstation environments, particularly in Lenovo ThinkStation systems. It extends connectivity options for external displays and peripheral devices via Thunderbolt 4, enabling high data transfer rates and power delivery over the same cable. Use in servers requires a stable and reliable interface, which the card provides through its passive cooling and Hot-Plug support. Passive cooling means no fans or moving parts are present, increasing operational reliability and minimizing noise.

Functions and Features in Detail

The card features a PCIe host interface with male gender, which is inserted into a corresponding PCIe slot. The output interfaces include Thunderbolt 4 and Mini DisplayPort, with Thunderbolt 4 technology enabling high bandwidth and simultaneous power delivery over the cable. The card supports Hot-Plug, meaning it can be inserted or removed during system operation without shutting down the system. Passive cooling ensures uninterrupted operation without additional fan noise.

Technology Explained Simply

The card uses the Maple Ridge controller, which enables connection to an external monitor via a Mini DisplayPort port. Two additional Mini DisplayPort ports are intended for receiving graphics signals from internal graphics cards. The internal Thunderbolt 4 port can be used for future expansions, for example via a Thunderbolt bridge or hub. Power is supplied via the PCIe system, with a standard power consumption of 45 W during operation. The card is designed for operating temperatures from 0 to 50 °C and relative humidity from 20 to 80 %, enabling use in controlled environments such as server rooms.

Compatibility and Accessories

The card is specifically developed for Lenovo ThinkStation workstations and is installed in a PCIe slot. The use of an HP bracket (Hewlett-Packard bracket) is intended, enabling installation in certain server or workstation enclosures. The card is certified with BSMI, CE, Morocco, FCC, IC, and VCCI, confirming compliance with international safety and emission standards.

Installation and Mounting

Installation is performed by inserting the card into a free PCIe slot in the server or workstation. Passive cooling requires no additional fans or heatsinks. The Hot-Plug function allows installation during operation, although system configuration must be adjusted accordingly. The card is designed as a High-Profile module, requiring specific placement within the enclosure.

Operational Advantages

The card provides a reliable extension of connectivity options for Thunderbolt 4 and Mini DisplayPort in server and workstation environments. Passive cooling ensures quiet and disturbance-free operation, while the Hot-Plug function simplifies system maintenance and expansion. Power delivery via the PCIe system reduces the need for additional power supply lines. The certifications guarantee compliance with international standards, enabling use in various markets.