What Fositek makes for data centers
public · HQ Taiwan
Fositek is a publicly listed company and based in Taiwan. It appears on 2 parts of the AI data center — Direct-to-chip cold plates and Quick disconnects — in the role of manufacturer. Those parts sit in Layer 5 — Liquid cooling (IT-side: chip to CDU). Its shares trade on Taiwan Stock Exchange as 6805.TW.
Parts, by layer
Layer 5 — Liquid cooling (IT-side: chip to CDU)
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Direct-to-chip cold plates | manufacturer | reported | AVC, Auras, Delta Electronics, Flex, Foxconn (Hon Hai), Jentech | |
| Quick disconnects | manufacturer | reported | Eaton, Parker Hannifin, CPC/Colder, Danfoss, Stäubli, Swagelok |
Where Fositek sits in the stack
Fositek's placements in this catalog cover 2 parts, all in layer 5, liquid cooling (it-side: chip to cdu). None of them currently carries a sourced supply constraint tag. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Direct-to-chip cold plates — A metal plate with internal microchannels, bonded or clamped directly onto a GPU, CPU, or switch package, that carries coolant across the die to remove heat by conduction rather than airflow.
- Quick disconnects — Blind-mate connectors (UQD or UQDB) that let a compute tray or cold plate be connected to or disconnected from the coolant manifold without draining or spilling the loop.
Closest peers in this catalog
Seen in real machines
Fositek is named in 1 of the rack teardowns and supercomputer breakdowns on this site. Each line below is a piece of that machine.
- Nvidia GB300 NVL72 · rack teardown
- Quick disconnects*
Monthly revenue (TWSE/TPEx filing)
| Month | Revenue (TWD m) | MoM | YoY |
|---|---|---|---|
| 2026-09 | 1,613 | 5.6% | 32.2% |
| 2026-08 | 1,528 | 12.4% | 29.1% |
| 2026-07 | 1,360 | 12.7% | 17.1% |
| 2026-06 | 1,206 | 2.2% | 32.7% |
| 2026-05 | 1,180 | -12.8% | 37.2% |
| 2026-04 | 1,353 | -15.4% | 59.0% |
| 2026-03 | 1,600 | 35.7% | 95.0% |
| 2026-02 | 1,179 | -16.0% | 51.1% |
| 2026-01 | 1,404 | 18.3% | 115.8% |
| 2025-12 | 1,188 | -19.9% | 39.3% |
| 2025-11 | 1,483 | 13.7% | 47.3% |
| 2025-10 | 1,305 | 6.9% | 43.4% |
Questions about Fositek
- What does Fositek make for AI data centers?
- This catalog places Fositek on 2 parts: Direct-to-chip cold plates (manufacturer) and Quick disconnects (manufacturer).
- Is Fositek publicly traded?
- Yes — Fositek is listed on Taiwan Stock Exchange under 6805.TW. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
- Where is Fositek based?
- Taiwan, per the company record in this catalog.
- Who else makes direct-to-chip cold plates for AI data centers?
- AVC, Auras, Delta Electronics, Flex, Foxconn (Hon Hai) and Jentech are also placed on Direct-to-chip cold plates in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Fositek the mix is 2 reported. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.