Who makes board-level connectors for AI data centers
The physical connectors — CPU and GPU sockets, board-to-board and cable connectors, and I/O cages — that link chips, trays and cables together on and between boards.
Connectors sit at nearly every junction in the rack: CPU and GPU sockets attach silicon to the baseboard (4.03), board-to-board connectors link trays together, and I/O cages (4.07a) terminate the optical and copper interconnect coming off layer 3. As pin counts, power currents and signal speeds all rise with each GPU generation, socket and connector design becomes a harder mechanical and electrical problem — more contact points, tighter tolerances on insertion force and contact resistance, and more attention to high-speed signal integrity through the connector itself. AI racks also simply need more connectors per system than a conventional server, both because there are more trays to link and because power delivery at rack scale increasingly moves through busbars and whips (4.15) rather than cables, each with its own connector interface. For investors, this tier tends to be sticky once a connector is designed into a socket or board generation, since requalifying a different supplier's socket against a new GPU package is not a drop-in swap; the interesting question by generation is who wins the socket design-in for the next GPU package.
AI delta: Higher pin counts, higher currents and faster signaling with each GPU generation make socket and connector design a harder mechanical problem, and AI racks need more connectors per system than a conventional server simply because there are more trays to link.
Companies on this part (12)
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Aces | manufacturer | public | 3605.TW | 172 TWD | -3.7% | disclosed | · source |
| Amphenol | manufacturer | public | APH | 74.09 USD | +1.4% | inferred | |
| Bizlink | manufacturer | public | 3665.TW | 1875 TWD | -4.3% | disclosed | · source |
| Foxconn Interconnect | manufacturer | public | 6088.HK | 3.71 HKD | -0.1% | inferred | |
| Hirose | manufacturer | public | 6806.T | 23390 JPY | -0.6% | disclosed | · source |
| JAE | manufacturer | public | 6807.T | 2587 JPY | -1.5% | inferred | |
| Lotes | manufacturer | public | 3533.TW | 1795 TWD | -1.9% | inferred | CPU/GPU sockets |
| Luxshare | manufacturer | public | 002475.SZ | 50.42 CNY | +7.0% | inferred | |
| TE Connectivity | manufacturer | public | TEL | 208 USD | -0.2% | inferred | |
| Yamaichi | manufacturer | public | 6941.T | 7530 JPY | -0.8% | disclosed | · source |
| Molex | manufacturer | private | inferred | ||||
| Samtec | manufacturer | private | disclosed | · source |
OSFP/QSFP cages 4.07a
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Amphenol | manufacturer | public | APH | 74.09 USD | +1.4% | inferred | |
| TE Connectivity | manufacturer | public | TEL | 208 USD | -0.2% | inferred | |
| Molex | manufacturer | private | inferred |
Who competes here
The same table read the other way: every company above competes for board-level connectors & sockets sockets. Confidence tags matter — an inferred placement is a lead, not a confirmed rivalry.
Seen in real machines
board-level connectors & sockets is named in 2 of the rack teardowns and supercomputer breakdowns on this site. Each line below is a piece of that machine. The companies shown are the ones named on that line, not necessarily the maker of this part.
- Nvidia GB300 NVL72 · rack teardown
- Sockets and board connectors — Lotes, Foxconn Interconnect, TE Connectivity, Amphenol, Molex, Samtec
- Fugaku · supercomputer
- Cabled backplane and board-level connectors (backbone between the system's circuit boards; connectors on each CPU) — Molex
Nearby parts
- Children: OSFP/QSFP cages
- Previous in layer: Copper-clad laminate & PCB materials
- Next in layer: Board-level power: VRMs, power stages, PoL, power semis
- Layer: Layer 4 — Servers, racks & integration
From the blog
Latest feed
- Zhen Ding Technology showcases AI infrastructure and terminal PCB lineup — DigiTimes, 2026-10-21Zhen Ding Technology displayed its latest advancements in AI server infrastructure and high-speed optical communication PCBs at the TPCA Show 2026.
- Nvidia unveils PTFE switch board at OCP, names Taiwan partners — DigiTimes, 2026-10-15Nvidia presented a PTFE switch board at OCP and announced partnerships with Taiwanese firms.
- NSF Launches Microelectronics Initiative for AI, HPC and Advanced Communications — HPCwire, 2026-09-18The NSF announced an initiative to help U.S. manufacturers transition low-dimensional semiconductor technologies into advanced microelectronics for AI and HPC.
- Huawei sees AI agents driving 90% of token traffic by 2035 — DigiTimes, 2026-09-17Huawei predicts that AI agents will generate 90% of token traffic by 2035, requiring substantial growth in computing, networking, storage, and power infrastructure.
- AI server tracker: BMC, cable, case suppliers post August 2026 gains — DigiTimes, 2026-09-16Taiwan's AI server supply chain experienced varying year-over-year growth in August, affecting baseboard management controllers, cables, connectors, and server-case suppliers.
- Proven 8-pin PCIe plugs aren't immune to melting — Thermal Grizzly WireView adapter burns out on Radeon RX 7900 XTX — Tom's Hardware, 2026-09-14Three 8-pin connectors on a Thermal Grizzly WireView adapter reportedly melted and burned out when connected to a Radeon RX 7900 XTX graphics card, prompting an investigation.
- AI server exports to US slow; electronics parts jump 1.5 times in August — DigiTimes, 2026-09-13Taiwan reported that electronic parts exports reached a record high of $32.22 billion in August 2026, with integrated circuits and printed circuit boards seeing significant growth.
- FIT wins Amphenol patent license, expands AI interconnect push — DigiTimes, 2026-09-08Foxconn Interconnect Technology secured a patent license from Amphenol to advance high-speed backplane connector solutions for the AI era.
- Macronix boosts sustainability spending to NT$780 million — DigiTimes, 2026-09-02Macronix reported that it achieved significant reductions in greenhouse gas emissions and committed to investing NT$780 million in sustainability initiatives for 2025.
- The Link Budget Is Decided at the Connector — EE Times, 2026-09-01The article discusses how the physical connector and its specific electrical characteristics determine the link budget and signal integrity for high-speed data center networking.
Questions about board-level connectors & sockets
- What are board-level connectors & sockets?
- The physical connectors — CPU and GPU sockets, board-to-board and cable connectors, and I/O cages — that link chips, trays and cables together on and between boards.
- Which companies make board-level connectors for AI data centers?
- This catalog lists 12 companies on Board-level connectors & sockets, 10 of them with listed equity: Aces, Amphenol, Bizlink, Foxconn Interconnect, Hirose, JAE, Lotes, Luxshare, TE Connectivity, Yamaichi, and 2 more.
- How does AI change demand for board-level connectors & sockets?
- Higher pin counts, higher currents and faster signaling with each GPU generation make socket and connector design a harder mechanical problem, and AI racks need more connectors per system than a conventional server simply because there are more trays to link.
- How reliable are these board-level connectors & sockets supplier placements?
- The 12 placements on this part break down as 5 disclosed, 7 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.
Sources: placements without a source URL come from the taxonomy seed and are tagged accordingly. How this data is built.· Markdown · JSON