TKO Connect: A Short-Distance Submarine Cable Linking Hong Kong's Data Hubs
TKO Connect is a submarine cable system connecting
Chai Wan and
Tseung Kwan O, two key locations in Hong Kong. With a total length of just 6 kilometers, it is one of the shortest submarine cables globally, designed to facilitate high-speed data transfer between these two areas. Owned jointly by HKBN and iAdvantage, TKO Connect is listed as in service and was recorded in GeoCables' database as being ready for service in 2023.
What stands out about TKO Connect is its role in Hong Kong's dense network of submarine cables. Tseung Kwan O, one of its landing points, hosts multiple major cables, making it a significant hub for regional and international connectivity. However, many technical details about TKO Connect, such as its design capacity, fiber pair count, and supplier, are not publicly disclosed, leaving aspects of its construction and performance open to speculation.
Quick facts
| Cable name | TKO Connect |
| Length | 6 km |
| Ready for service | 2023 (GeoCables database) |
| Owners | HKBN, iAdvantage |
| Status | In service |
| Design capacity | Not disclosed |
| Fiber pairs | Not disclosed |
| Supplier | Not disclosed |
| Technology | Not disclosed |
| Landing points | Chai Wan (China); Tseung Kwan O (China) |
🗺 Show TKO Connect on the interactive cable map
Route
The TKO Connect cable runs between Chai Wan and Tseung Kwan O, both located within Hong Kong. Chai Wan is situated on the eastern side of Hong Kong Island, while Tseung Kwan O lies in the New Territories on the mainland side. This short route is entirely within Hong Kong's territorial waters, simplifying regulatory and permitting processes compared to international cables. Tseung Kwan O is a major connectivity hub, hosting several other submarine cables such as
Asia Pacific Gateway (APG),
Asia Submarine-cable Express (ASE)/Cahaya Malaysia,
EAC-C2C,
SEA-H2X, and
Sihanoukville-Hong Kong (SHV-HK).
Why it was built and what it carries
TKO Connect was likely built to enhance local connectivity between two important data center locations in Hong Kong. Tseung Kwan O is home to multiple data centers and serves as a landing site for several regional and international cables. Chai Wan, while less prominent in terms of cable landings, is also a strategic location for data center operations. The cable's short length suggests it is optimized for low-latency data transfer, which is critical for applications such as financial trading, cloud computing, and enterprise data services. However, without publicly disclosed capacity or technology details, its exact role in the broader network remains unclear.
History: what can be established
GeoCables records TKO Connect as being ready for service in 2023, and it is currently listed as in service. No conflicting dates have been identified from industry sources, so the 2023 RFS date appears reliable. The cable is jointly owned by HKBN and iAdvantage, both of which are key players in Hong Kong's telecommunications and data center industries. Publicly available information does not provide further specifics about its construction timeline or initial deployment.
Capacity and technology
The design capacity, fiber pair count, supplier, and technology of TKO Connect are not disclosed in public sources. Without operator documentation, attributing specific capabilities to the cable would be speculative. Given the short distance of 6 kilometers, it is reasonable to assume that the cable employs high-capacity optical fiber technology suitable for short-haul, high-bandwidth applications, but this cannot be confirmed without further information.
Latency: the physics
Theoretical latency for TKO Connect's wet segment is exceptionally low due to its short length. Light propagation over 6 kilometers of fiber results in a one-way latency of approximately 0.0 milliseconds, with a round-trip time (RTT) floor of about 0.1 milliseconds. However, real-world latency will be higher due to additional factors such as land tails, terminal equipment delays, and routing inefficiencies. No live measurements are available for TKO Connect, so its actual performance cannot be assessed.
Redundancy: what happens if it breaks
If TKO Connect were to experience a fault, redundancy would likely be provided by other cables landing at Tseung Kwan O, including Asia Pacific Gateway (APG), Asia Submarine-cable Express (ASE)/Cahaya Malaysia, EAC-C2C, SEA-H2X, and Sihanoukville-Hong Kong (SHV-HK). These cables offer alternative routes for regional and international traffic. Repairing a short cable like TKO Connect would generally involve standard industry practices, including deploying a cable repair vessel to locate and fix the fault. Given its proximity to Hong Kong's shores, repair operations would likely be faster and less complex compared to longer, deep-sea cables.
Bottom line
- TKO Connect is a 6-kilometer submarine cable connecting Chai Wan and Tseung Kwan O in Hong Kong.
- It is owned by HKBN and iAdvantage and was recorded as ready for service in 2023.
- Technical details such as design capacity, fiber pairs, supplier, and technology are not publicly disclosed.
- The cable's theoretical latency is extremely low, but real-world performance data is unavailable.
- Redundancy is provided by several other cables landing at Tseung Kwan O.