Custom PCIe x4 Riser Mount For Futro S920

This is a custom-designed riser support and cable guide for the Fujitsu Futro S920 thin client, created to solve a common mechanical issue when using generic PCIe x4 angled risers.

The Problem

When I tried to use a generic angled PCIe x4 riser (ordered from Aliexpress), the card ended up tilted inside the case, putting mechanical stress on both the slot and the card. This happened because most generic risers are approximately 4 mm lower than the official Fujitsu RISERCARD-D3318-PCIE.
You can read more about this issue in detail (with measurements and photos) in this German-language article:
Die passende Riser-Karte für den Fujitsu FUTRO S920


Since I didn’t want to spend ~20€ for the original part, I built my own riser using a flat PCIe extension cable and two simple 3D-printed parts.

Solution:

A flat PCIe x4 extension cable (male–female), such as:
Example on Ebay.com
(or search for: "PCIe x4 extender ribbon cable 5–10 cm")

3D-printed support bracket to hold the connectors at the correct height and angle

3D-printed cable loop to organize excess cable inside the case
 

Fit Comparison:

The image below shows a side-by-side comparison:

Left: Generic angled riser – card is tilted and under stress

Right: This custom riser – card sits straight and relaxed

The extra 4 mm makes all the difference for correct alignment inside the Futro case.

Assembly Instructions

1. Position the PCIe extension cable ends at a 90-degree angle.
   Press the 3D-printed support bracket onto both connectors. This locks them in place at the proper height and removes all stress from the PCIe slot.
   See the reference photo for correct alignment.
   
   
   
    
2. Organize the flat cable using the cable loop.
   Feed any excess cable through the two printed rings. This keeps the cable in a compact loop and ensures it doesn’t interfere with the case cover.