Services between Hong Kong West Kowloon and Dongguan run on the Guangzhou–Shenzhen–Hong Kong Express Rail Link and are operated with China Railway High-speed (CRH) trainsets. The corridor is primarily served by G‑class (Gaotie) high‑speed trains; regional intercity CRH sets also operate shorter, all‑stations or limited‑stop runs to Dongguan. - Service patterns: non‑stop or limited‑stop G‑class high‑speed trains call at Dongguan Humen or Dongguan East on some workings; intercity services stop at additional stations such as Shenzhen Futian and local Dongguan stops depending on the timetable. Fastest limited‑stop runs between West Kowloon and Dongguan complete the trip in roughly 20–25 minutes; stopping services typically take about 30–45 minutes, depending on the number of intermediate stops. - Speed and rolling stock: trains on this corridor operate at typical line speeds of about 200–300 km/h (124–186 mph) on long sections; short regional runs are commonly timed and operated around 200–250 km/h (124–155 mph). Rolling stock is modern CRH high‑speed equipment used across the Pearl River Delta network. - Classes and onboard features: most trains offer Second (standard) and First class seating; many G‑class services also provide Business class on specific trainsets. Onboard facilities commonly include reclining seats, power outlets at or near seats, overhead and dedicated luggage areas, toilets, and multilingual announcements. - Border and travel documents: Hong Kong West Kowloon contains the Mainland Port Area where passengers clear mainland immigration and customs before boarding; valid travel documents for mainland entry are required and should be carried when booking. - Frequency and ticketing: multiple departures daily; choose G‑class non‑stop/limited‑stop services for the quickest travel times, or intercity stopping services if you need access to intermediate Dongguan or Shenzhen stations.