➀ JFS Laboratory, a Chinese government-backed company, has developed a silicon photonics chip, marking a first for the country; ➁ The chip is expected to have advantages over traditional chips in high-performance applications like AI and HPC; ➂ The breakthrough is significant in the context of sanctions against China and the inability to produce high-performance processors.

➀ Marvell's visibility of accelerated growth became clearer after the Q1 2025 earnings release; ➁ The Data Center (DC) division saw a sequential revenue growth of 7.9%, accelerating from 6.7% in Q1 2025; ➂ No signs of slowing down in数据中心 investments, with recent highlights including Microsoft's agreement and BlackRock's AI fund; ➃ Marvell's order volume of 800G PAM and 400ZR data center interconnect products remained stable in Q2 2025, and production of 800G DSP for AEC will increase; ➄ Analysts expect Marvell's EBITDA to grow 27% in FY25 and 60% in FY26, with a current growth rate of about $26 billion.

➀ IBM opened its first quantum data center outside of the US in Ehningen, Germany, with Chancellor Olaf Scholz in attendance; ➁ The center houses two IBM Quantum Eagle-based systems and an upcoming IBM Heron system, enhancing IBM's global quantum network; ➂ The German government is supporting the development of quantum technologies and the center is expected to foster innovation and business growth.

➀ This letter discusses the updates and activities of STH in Q3 2024, including the challenges and achievements in filming at the Paris 2024 Olympics, the upcoming server reviews, and the expansion of the STH team and channels. ➁ The author reflects on the growth of the STH YouTube channel and the introduction of the Axautik Group for more specialized content. ➂ The letter concludes with a call for team expansion and a reminder to subscribe to STH's newsletter and YouTube channel for more content.

➀ Yuanxin's core products include tunable laser diodes with 13 dBm output power and 50 nm tuning range, and LNOI modulators with 3 cm device length and 40 GHz RF bandwidth.➁ Wuhan Anpai Optoelectronics offers LNOI MZM modulators with 100 GHz EO bandwidth and Y-waveguide modulators for chip integration and miniaturization.➂ Neo Optoelectronics presents single-wavelength 400Gbps modulators with bandwidths exceeding 110GHz and 1.6T/800G DPIQM modulators with 70GHz bandwidth and 25dB extinction ratio.➃ Suzhou Yilaiwei develops silicon photonics chips with D2W bonding technology and achieves 70GHz electrical-optical modulation bandwidth.➄ Guoguang Optoelectronics successfully打通8-inch low-loss SIN platform and develops TFLN/SIN heterojunction technology for 800G/1.6T data center applications.

1. Data center revenue grew 154% year-over-year to $26 billion, driven by strong demand for Hopper, GPU computing, and networking solutions. 2. Blackwell is expected to begin production ramp-up in the fourth quarter and continue into FY2026. 3. The trend of continued purchases of the best-in-class compute for AI is likely to continue as next-generation models require 10 to 20 times more compute power to train with significantly more data. 4. Cloud service providers account for 45% of Nvidia's data center revenue, with consumer, Internet, and enterprise companies making up more than 50%. 5. Management highlights accelerated computing and generative AI as major computing transitions, justifying ongoing capital expenditures and long-term sustainability of GPU demand.

➀ Broadcom has announced the general availability of Sian2, its 200Gbps per lane PAM-4 DSP PHY that supports 100Gbps electrical and 200Gbps optical interfaces. Sian2 and Sian DSPs are designed to enable pluggable modules with 200G/lane interfaces for next-generation AI clusters. ➁ The migration from 400G/800G links with 100G/lane optics to 800G/1.6T links with 200G/lane optics is necessary for higher bandwidth, lower power, lower latency, and lower cost. ➂ Sian2 and Sian DSPs are optimized for 800G and 1.6T optical module platforms, doubling the bandwidth with lower power, lower latency, and lower cost per bit to facilitate AI data center scale.

Vespertec has launched its AI lab environment in Stockport, featuring the latest NVIDIA Grace Hopper architecture and the SN5600 switch. The Test Drive programme allows customers to explore and validate cutting-edge computing technologies. The lab is equipped with the NVIDIA GH200 Grace Hopper Superchip and a PCIe-based GPU server, linked by the NVIDIA Spectrum-4 SN5600 switch and Edgeware interconnect. The remote access feature enables users from various backgrounds to leverage the technology without geographical constraints.

➀ Google is reportedly planning to establish a hyperscale data center near Ho Chi Minh City, Vietnam, marking its first such investment in the country. ➁ The project, if approved, aims to be operational by 2027 and could significantly impact Vietnam's digital infrastructure. ➂ The decision is driven by Vietnam's growing digital economy and the rapid expansion of YouTube's user base in the country, despite challenges like power supply shortages and unstable network infrastructure.

1. NVIDIA reported a record $30 million in revenue, up 15% sequentially and 122% year-over-year, driven by its Data Center division. 2. Despite exceeding expectations, NVIDIA's share price dipped pre-market due to a perceived slowdown in growth rate. 3. NVIDIA's Data Center business, especially in AI, continues to be the major revenue driver, with upcoming launches like Blackwell expected to boost future earnings.

➀ LG plans to expand its HVAC business into data center cooling, leveraging its existing chiller technology. ➁ The company is exploring liquid immersion cooling for more efficient cooling solutions. ➂ LG also aims to secure revenue through subscription services, positioning them as a key growth area.

➀ ByteDance has deployed 40,000 multi-mode 800G OSFP optical modules by the end of July. ➁ The company is focusing on optimizing the performance of these modules to reduce failure rates. ➂ ByteDance is considering transitioning from DPO to LPO for 8x100G modules, aiming for a low-power solution by 2025-2026.

1. AMD is acquiring ZT Systems for $4.9 billion to enhance its AI ecosystem and challenge NVIDIA's dominance in the AI field. 2. The acquisition aims to deliver best-in-class training and inferencing solutions and deploy them at scale. 3. ZT Systems will become part of AMD's Data Center Solutions Business Group, focusing on end-to-end data center AI infrastructure.

❶ Intel reported a $1.6 billion loss in Q2 2024, with revenue dropping by 1% year-over-year. ❷ The company's data center and foundry divisions are struggling, leading to a 15% workforce reduction. ❸ Intel expects a challenging second half of the year, with an uninspiring revenue outlook for Q3 2024.

1. AMD's Q2 2024 revenue reached $5.8 billion, a 7% sequential and 9% year-over-year increase, driven by a record $2.8 billion in Data Center revenue. 2. Instinct MI300 achieved over $1 billion in quarterly revenue for the first time, contributing significantly to AMD's AI business. 3. Despite a 30% sequential decline in the Gaming division, AMD expects strong growth in the second half of the year, supported by demand for Instinct, EPYC, and Ryzen processors.

1. Micron introduces the 9550 SSD series, targeting data centers with up to 14GB/s sequential read speeds. 2. The series includes 9550 Pro and 9550 Max models with varying capacities and write speeds ranging from 6GB/s to 10GB/s. 3. Micron claims the 9550 SSD offers up to 3.3 million IOPS for 4K random reads and significant power savings in AI workloads.

❶ Elon Musk's Memphis Supercluster, powered by 100,000 liquid-cooled H100 GPUs, uses 14 massive mobile generators to bypass local power supply constraints. ❷ The Tennessee Valley Authority is set to provide 50 MW to the facility, but the full capacity of 100,000 GPUs requires additional power sources. ❸ The reliance on mobile generators raises concerns about environmental impact and the need for cleaner energy solutions.

1. Spending on AI back-end network switches is expected to reach $80 billion by 2029, nearly doubling the total data center switch market. 2. InfiniBand currently dominates the AI back-end network market, but Ethernet is poised to take over. 3. The majority of switch ports in AI back-end networks are expected to be 800 Gbps by 2025 and 1600 Gbps by 2027.