Notebookcheck Logo

Minisforum EOP4A: Unusual OCuLink adapter card launches globally

The Minisforum EOP4A is a relatively compact OCuLink solution for mini-PCs and other SFF builds. (Image source: Minisforum)
The Minisforum EOP4A is a relatively compact OCuLink solution for mini-PCs and other SFF builds. (Image source: Minisforum)
The EOP4A is an OCuLink adapter card from Minisforum. Best known for its mini-PCs, Minisforum claims that the EOP4A should not face any signal loss when connected to an eGPU thanks to its built-in redriver chip. The Minisforum EOP4A is available to order now.

Minisforum has quietly started selling the EOP4A, which has launched today alongside the BD895i SE motherboard. A PCIe to OCuLink adapter card, the EOP4A aims to simplify eGPU and storage setups for mini PCs that lack full-length PCIe slots.Nonetheless, the new accessory can connect with PCIe x1, x4, x8 or x16 slots

As the picture below shows, the EOP4A contains just an OCuLink port on its rear, which Minisforum clarifies is an SF-8612 interface to connect with eGPUs like its DEG1 (curr. $99 on Amazon). Thus, the adapter should deliver PCIe 4.0 ×4 with a 64 Gbps peak bandwidth. It is worth noting that one can only achieve these speeds when the EOP4A is placed in an x4, x8 or x16 PCIe 4.0 or PCIe 5.0 connector. Otherwise, peak bandwidth will drop significantly, particularly when pairing the EOP4A with a PCIe 3.0 connector.

(Image source: Minisforum)
(Image source: Minisforum)

Moreover, the company has included a redriver chip to reduce data errors and maintain signal integrity. Apparently, the 40 x 80 mm adapter provides a plug-and-play experience with no dedicated drivers required too. For reference, Minisforum includes 8 cm low-profile and 12 cm full-height brackets as well.

The EOP4A can be picked up from Minisforum for £69 (~$93) in the UK and €55 (~$65) in the Eurozone, reduced from alleged £89 (~$119) and €69 (~$94) MSRPs, respectively. While listed on Minisforum's US website, the device is not currently orderable. Please see the company's product listing for more details.

(Image source: Minisforum)
(Image source: Minisforum)

Source(s)

Minisforum (1) (2) (3) via VideoCardz

static version load dynamic
Loading Comments
Comment on this article
Please share our article, every link counts!
Mail Logo
Google Add as a preferred
source on Google
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 12 > Minisforum EOP4A: Unusual OCuLink adapter card launches globally
Alex Alderson, 2025-12-16 (Update: 2025-12-17)