With the continuous improvement of modern computing needs, various hardware devices are pursuing the perfect combination of performance and portability. In this trend, the integration of graphics card expansion docks, advanced chip design and OCuLink technology has become an important solution to promote device performance. This article will focus on how graphics card expansion docks are combined with OCuLink technology and related chips to redefine the performance boundaries of thin and light devices.
OCuLink (Optical Copper Link) is an efficient interface technology designed to provide low-latency, high-bandwidth data transmission through pure PCIe channels. With a transmission rate of up to 64Gbps, OCuLink has obvious advantages in data transmission efficiency and stability compared to USB4 or Thunderbolt 4. By directly connecting the graphics card to the device motherboard, OCuLink minimizes performance loss and provides higher performance release space for external graphics card expansion.
The Tianba AG01 graphics card expansion dock has a simple and high-end aluminum alloy profile frame design, which is both beautiful and practical. It is like a work of art when placed on the desktop. Its built-in customized Huntkey 400W power supply adopts a one-line design and comes with a cable hub function, which reduces the clutter of cables on the desktop and improves the user experience and visual neatness.
The Tianba AG01 graphics expansion dock is equipped with an OCuLink interface, supports native direct connection to PCIe, and brings 64Gbps of effective bandwidth. Compared with USB4 or Thunderbolt 4 interfaces, it provides a more efficient and low-cost expansion solution. The interface is also equipped with a safety lock to prevent it from falling off and ensure stable connection. The expansion dock supports the hot-swap function of Lenovo's TGX interface, and is especially suitable for ThinkBook14+/16+ 2024 Core Edition laptops, providing users with a convenient graphics expansion solution.
GPD G1 graphics dock is a compact mobile graphics expansion device with a built-in AMD Radeon RX7600M XT graphics card. It is based on a 6nm process and RDNA3.0 architecture, providing excellent graphics processing capabilities, and its performance is comparable to the RTX 4060 mobile version. This graphics dock is designed for users who need high-performance graphics processing. It can expand the graphics computing capabilities of laptops or handhelds to meet the needs of high-load applications such as games, design, and video editing.
The GPD G1 portable mobile graphics dock is equipped with a variety of interfaces, including USB-A, RJ45 network interface, DP, HDMI, Oculink PCIe 4.0x4 and USB-C USB4 interfaces, and a built-in M.2 solid-state drive slot to support additional storage expansion. The device supports up to 330W power input and provides 65W PD fast charging function to provide stable power supply guarantee for external devices. Its cooling system adopts VC heat spreader combined with turbo fan design to ensure good heat dissipation even under high load operation. This graphics dock is designed to improve the storage expansion and graphics processing performance of portable devices and is an ideal choice for gamers, designers and content creators.
The open source universe graphics dock EG01C uses Great Wall CRPS 550W/800W platinum power supply, which is small in size but can provide strong power support. Its power supply adopts a pluggable design for easy replacement and upgrading. The internal structure is cleverly designed, with a power module at the bottom, an OCuLink motherboard in the middle, and a graphics card at the top, maximizing the utilization of limited space. This compact layered design not only improves the functionality of the device, but also ensures efficient heat dissipation and stable operation, providing users with a more efficient expansion solution.
The open source universe graphics dock EG01 C is equipped with a new pluggable OCuLink interface, which has strong stability and durability, and effectively prevents the interface from falling off. The graphics dock is highly compatible and adapts to a variety of devices, including ThinkBook 2024 Core Ultra Edition notebooks, Xuanpai Xingyao series notebooks, Thunder AIBOOK15 and Tianba GEM series products, providing users with flexible graphics performance expansion solutions to fully meet the needs of gamers and high-performance computing users.
The ThinkBook TGX graphics expansion dock Geek Edition adopts an all-aluminum one-piece molding process, and the body is finely polished to show a minimalist and high-end design aesthetic. The honeycomb vent design is perfectly integrated with the angel eye power indicator light, which not only enhances the heat dissipation performance, but also enhances the visual perception. The overall shape is low-key and restrained, which complements the ThinkBook notebook and looks calm and unobtrusive when placed on the desktop. With its excellent design and practicality, it won the German Red Dot Design Award, providing users with an excellent graphics card expansion experience and a work of art-like enjoyment.
The ThinkBook TGX graphics expansion dock Geek Edition is equipped with an advanced TGX interface, with a maximum data transfer rate of up to about 64Gbps, which is about 2 times higher than Thunderbolt 4 and 3 times higher than Thunderbolt 3. By directly connecting the graphics card to the external monitor, performance loss is effectively reduced, ensuring the maximum output of graphics processing capabilities. This design greatly improves the graphics computing efficiency of the device, not only providing a smooth experience for gamers, but also unleashing more potential for creative workers, and providing strong support for high-load tasks such as video editing, 3D modeling and graphics rendering.
ONEXGPU One Graphics Card is a multi-functional expansion dock with a built-in graphics card. It is compact but powerful and provides a rich selection of interfaces. Its configuration includes two USB-A 3.2 data interfaces, an RJ45 Gigabit wired network interface, two DP video interfaces, two HDMI video interfaces, an Oculink PCIe 4.0x4 graphics card direct connection interface, a USB-C USB4 40Gbps full-function interface, and a DC 330W power input interface, providing excellent expansion capabilities for connected devices. In addition, its built-in M.2 solid-state drive slot can provide additional storage expansion for the device, making it an innovative device that combines high performance and versatility.
The ONEXGPU No. 1 graphics card has an AMD Radeon RX7600M XT graphics card built in, and supports connecting to devices via a USB4 interface or an Oculink PCIe direct connection port. This GPU is built on the 6nm process RDNA3.0 architecture and has powerful graphics performance. Its TimeSpy score is as high as 10542, which is comparable to the performance of the RTX 4060 mobile version. In order to ensure the stable release of graphics card performance, the ONEXGPU No. 1 graphics card adopts an advanced heat dissipation design, equipped with a VC heat spreader and a high-efficiency heat sink, and uses a turbo fan to quickly take away heat, providing excellent heat dissipation performance and bringing users a more lasting performance experience.
In Parallel Technology's OCuLink interface solution, a unidirectional 4-channel linear transfer driver chip called PS8570 is integrated. The chip is designed for PCIe Gen 4 and supports a data transfer rate of up to 16.0GT/s, ensuring high-speed and stable data transfer performance. The PS8570 has a 2×2 crossbar switch function that can achieve multiplexing, demultiplexing or crossbar operations, making it very suitable for scenarios that require a high number of PCIe bus widths, such as external graphics cards, storage expansion and other high-performance devices. This design provides key support for the breakthrough in efficiency and flexibility of the OCuLink interface.
The PS8570 chip significantly reduces the energy consumption of the overall system with its extremely low power consumption, while reducing heat dissipation in mobile applications, further improving the energy efficiency of the device. It can eliminate unnecessary signal distortion and potential errors in the physical transmission interface (including PCIe interconnect cables, PCB traces and connectors), greatly improving the reliability of data transmission. This feature enables the PS8570 to support longer PCIe interconnect cables or PCB traces, thereby enhancing the scalability of the system.
In typical applications, since the PS8570 is a unidirectional driver chip, it needs to be used in pairs: one for the downstream PCIe channel and the other for the upstream PCIe channel. This design not only ensures the stability of data transmission, but also provides flexibility and reliability for complex system architectures.
The charging head network has summarized a number of products that support OCuLink technology, covering laptops, mini consoles, game handhelds and graphics card expansion docks. Laptops that support the OCuLink interface mainly come from brands such as Lenovo, Players Republic and Thunder; mini consoles include products from Tianba, Mingfan and Xuanpai. In addition, a number of game handhelds have also begun to introduce OCuLink technology. In terms of graphics card expansion docks, there are currently four products on the market, including Tianba, GPD, Open Source Universe and One XPlayer.
Through the efficient OCuLink interface, these devices can be connected to powerful graphics cards to greatly improve graphics processing capabilities, thereby performing well in scenes such as creation, gaming and AI computing, and comprehensively improving productivity. This technology brings a balance between performance and scalability to portable devices such as thin and light notebooks, mini consoles and handhelds, and also redefines the application boundaries of portable devices.
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