SpaceX vets raise $50M Series A for data center links

Source: TechCrunch

Travis Brashears, Cameron Ramos and Serena Grown‑Haeberli began collaborating at SpaceX, developing optical communications links that keep thousands of Starlink internet satellites in constant contact. Now, the three engineers are co‑founders of Mesh Optical Technologies, a Los Angeles startup that announced a $50 million Series A led by Thrive Capital.

Funding round

• $50 M Series A led by Thrive Capital (announced Tuesday).
• Goal: manufacture a thousand optical transceiver units per day within the year to qualify for bulk orders in 2027‑2028.

Technology and market

Mesh aims to mass‑produce optical transceivers, devices that convert optical signals from fiber or laser into electrical signals for computers. These transceivers are crucial for data centers that train and run large deep‑learning models, enabling multiple GPUs to work together.

One established U.S. supplier, AOI, won a contract worth $4 billion to provide components for AWS data centers last year.

“Someone will brag about a million GPU cluster; you have to multiply by four to five for the number of transceivers in that cluster,” Brashears explained.

Mesh sees an advantage in building its supply chain outside of China, where the optical transceiver market is currently dominated. The founders view this as a pre‑emptive move against a potential national‑security dilemma.

Challenges and manufacturing

The primary challenge is executing lights‑out, automated manufacturing techniques, which are uncommon in the U.S. industry. Much of the expertise is concentrated in China; even European equipment suppliers often require a Chinese company registration number on intake forms.

By co‑locating design and production, Mesh hopes to achieve more efficient, lower‑cost components. Their current design removes a commonly used but power‑hungry component, which Ramos says could reduce GPU‑cluster power usage by 3 %–5 %—a meaningful gain for hyperscalers seeking efficiency.

Future outlook

Data centers are just the beginning. Mesh envisions optical wavelength communications as the next paradigm in communications.

“The world has primarily focused on [radio frequencies] for a long time,” Brashears told TechCrunch. “We want to be at the precipice of transition from RF to photonics…we want to interconnect everything, and not just computers, but that’s where we’re starting.”