High-speed trains link Shanghai and Jiaxing via the Shanghai–Hangzhou High-Speed Railway. The fastest options are G-series high-speed services, typically using CR400 “Fuxing” or CRH380 trainsets, operating at up to 300 km/h (186 mph). These trains run from Shanghai Hongqiao to Jiaxing South in about 20–25 minutes when nonstop, or roughly 25–35 minutes with intermediate calls such as Jiashan South. Seating layouts include Second Class, First Class, and Business Class on most G trains. D-series high-speed EMUs (often CRH2 models) cover the same route but generally run at 200–250 km/h (124–155 mph) and make more stops, so the trip usually takes 30–45 minutes. D trains typically offer Second and First Class seating and can be slightly lower in price. Both G and D services are air-conditioned, have assigned seating, power outlets, and clean restrooms. Travelers seeking the shortest travel time should opt for a G-series train, while those wanting more station options along the corridor can choose a D-series service.