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Semtech

CopperEdge ACC redrivers and optical TIAs and drivers

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Where it fits in an AI server rack

Sells CopperEdge linear redrivers (GN8214, GN8224, GN8234) for 800G/1.6T active copper cables in AI data centers at under 2 W per cable end (Apr 2, 2025); Amphenol’s 1.6T OSFP active copper cable uses them (Apr 1, 2025). At OFC 2026 it showed 448G-per-lane CopperEdge and demonstrated NVIDIA’s 1.6T DR8 OSFP transceiver with its GN1834D TIA and a Semtech modulator driver (Apr 28, 2026).

What the evidence establishes

AI-rack evidence

Disclosed: Semtech’s releases and OFC 2026 post describe CopperEdge and its optical chips; the Amphenol cable release names both companies.

An explicit AI-server or AI-rack product, design-in, supply role, program, reference design or partnership, such as a part named for rack-scale AI systems or a product sold for AI data centers. For a rack builder, it means the company’s own AI servers or racks. This does not establish revenue, market share, volumes or future sourcing.

Component roleCopperEdge ACC redrivers and optical TIAs and drivers
EvidenceDisclosed: Semtech’s releases and OFC 2026 post describe CopperEdge and its optical chips; the Amphenol cable release names both companies.
How we knowDisclosed The company’s own filing, release, annual report, product page or investor record describes the AI-server or AI-rack role. Where customers are unnamed, the listing says so.
Primary sourceSemtech — supporting disclosure
Company or official disclosure; vendor claims are attributed to their source.
Checked. This is the research review date, not the source publication or quote time.

Keep in perspective

Semtech names no AI-rack customer, and the NVIDIA transceiver item is a demonstration, not a disclosed supply contract. Redriver-based cables are a lower-power alternative to retimed AECs, and data-center products are one part of fiscal 2026 net sales of $1.05B.

Diversified business exposure. This describes the breadth or role of the business; it is not an investment rating. An AI-server product, design-in or partnership does not by itself establish material AI-rack revenue, market share, or future returns.

Connections to the assembly

These links explain the technology relationship. The model is illustrative and does not represent an actual manufacturer’s bill of materials.

Active electrical cables

Copper cables with a retimer or DSP chip in each plug that cleans up the signal, extending copper’s reach to several metres at a fraction of the power of optics.

Scope of the company links: Copper cables with signal chips in the plugs, mostly for NIC-to-switch and switch-to-switch links. Credo sells complete ZeroFlap AECs to hyperscalers; Marvell’s Alaska A 1.6T AEC DSP names Amphenol, Molex and TE as cable partners (Jun 27, 2024); Astera Labs sells Aries and Taurus smart cable modules for AECs; BizLink and Luxshare sell retimed active copper cables (Luxshare showed a 1.6T OSFP AEC at OCP 2025); Microchip sells the META-DX2C 800G AEC retimer. Semtech’s CopperEdge redrivers power linear active copper cables (ACCs), such as Amphenol’s 1.6T OSFP ACC, a lower-power alternative to retimed AECs. No source ties a specific cable to NVL72. Montage launched PCIe 6.x and CXL 3.x AEC solutions in January 2026.

Optical DSPs & drivers

PAM4 digital signal processors, laser drivers and amplifiers that encode, equalize and retime the signal at each end of an optical link.

Scope of the company links: PAM4 DSPs retime and equalize each lane; drivers and TIAs amplify the electrical signal on each side of the laser and photodiode. Marvell (PAM DSPs, laser drivers, TIAs and LPO chipsets for AI data centers, FY2026 10-K), Credo (Bluebird, a 3 nm 200G-per-lane DSP for 1.6T modules, plus 100G-per-lane families, FY2026 10-K) and MACOM (TIAs and modulator drivers for 800G–3.2T modules, FY2025 10-K) are mapped, and Semtech’s TIA and modulator driver were demonstrated in NVIDIA’s 1.6T DR8 OSFP transceiver at OFC 2026. Broadcom’s optical DSP line could not be read from a primary source in our review, so Broadcom is mapped under lasers only. Linear-drive (LPO/LRO) modules drop some DSP functions, and NVIDIA says its co-packaged switches need no DSP retimers.

Related research

Companies with overlapping sector exposure. Their products and evidence may differ; this is not a list of equivalent investments.

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