Best ST Fiber Optic Connectors of 2025

FiberShack Coupler Kit is a versatile and durable solution for any Singlemode or Multimode application, coupling any ST/LC/SC/SC-APC patch cord. The kit contains 26 couplers in a hard plastic carry case organizer, including 8 ST, 8 LC, 5 SC & 5 SC/APC couplers. The coupler kits can reduce the cost of purchasing separate couplers that are often more expensive. The durable Plano case ensures protection against elements out in the field and helps you organize your bag. Precision tooled metal with close tolerances for exact fit make for ideal couplers. Pacific Satellite Inc, the trusted supplier since 1989, created FiberShack to source their own fiber products for HDTV, SDI, and Analog MATV systems. FiberShack is your mission critical supplier for all Optical Fiber needs.

The FiberShack Fiber Optic Adapter & Variable Attenuator Kit includes 3 adapters and 2 attenuators in a durable plastic case, suitable for single-mode or multi-mode applications. The kit is economical, convenient, and pre-tested to ensure consistent performance. The dust caps protect against debris, making it ideal for heavy use in the field. Pacific Satellite Inc has been installing commercial CATV systems and networks throughout the USA since 1989, and their brand, FiberShack, is a trusted supplier for all optical fiber needs.

ACL Fiber Optic Coupler is a high-quality product with a durable metal housing. Weighing only 0.03 lbs, this coupler ensures reliability in fiber optic connections. The metal housing provides extra protection, making it long-lasting. With its ST/ST Female Simplex design, it guarantees a secure and stable connection for your fiber optic needs. Enjoy the convenience of a top-quality coupler with ACL Fiber Optic Coupler.

The BAOSHLA Fiber Adapter is designed for both single-mode and multi-mode applications, ensuring low signal loss and high efficiency. This means you can rely on it for accurate performance in your connections. Its durable metal construction makes it resistant to damage, providing you with a reliable tool that’s easy to use. With excellent repeatability, you can count on consistent results every time you connect and disconnect. Plus, the adapter offers great isolation, which minimizes interference, ensuring a clear and stable signal.

The JAOTONGBO Fiber Optic Connectors come with 100 pieces, giving you plenty of options for your projects. The connectors feature both round and square heads, making installation straightforward and hassle-free. They are compatible with multiple connector types, including SC, FC, ST, and LC, ensuring versatility for various telecommunications needs. Made from high-quality materials, these connectors promise reliable performance, so you can trust them to maintain strong connections. This simplex design enhances efficiency, making it an excellent choice for anyone looking to improve their fiber optic setup.

The Generic ST Connector is a single-mode fiber optic connector that offers utility and flexibility. With its factory-polished end face, you can expect consistent optical performance. Fast termination without consumables reduces installation costs. The minimum insertion loss ensures optimum optical performance for your needs.

Upgrade your fiber optic connections with the sourcing map Uxcell Fiber Adapter. Weighing only 11g, this adapter is designed for ST optic fiber cables. With an insertion loss of less than 0.2dB and an insert core diameter of 125-127um, you can expect reliable performance. The silver tone and black color make it visually appealing. Operating smoothly between -40C to 80C, this metal and plastic adapter with a ferrule hole diameter of 7mm (0.28") ensures durability and stable connections for your fiber optic needs.

The CableWholesale Duplex Coupler is designed to enhance your fiber optic connections. Its sturdy metal housing ensures a secure fit, providing you with a reliable connection that won’t falter. With a high-grade zirconia sleeve, this coupler aligns your cables precisely, minimizing signal loss for clearer data transmission. Additionally, it features a low insertion loss of just ≤0.2dB, which helps preserve the strength of your signals. No matter the environment, this coupler is built to operate in extreme temperatures, ensuring consistent performance whether it’s hot or cold outside.

The Dong Yong Fiber Optic Adapter is designed for seamless connectivity in multimode fiber applications. With its hybrid connector type, it ensures compatibility with various fiber optic systems, making it a versatile choice for users. This product is CE certified, giving you confidence in its quality and safety standards. Additionally, it is produced in Mainland China, showcasing reliable manufacturing practices. By using this adapter, you can enhance your network's performance and reliability, providing you with a smoother data transmission experience.

The Networx® Fiber Coupler is an essential tool for connecting fiber optic cables. It operates efficiently in a wide temperature range from -20°C to +70°C, ensuring reliable performance in various environments. This coupler features ST Female to ST Female connectors, making it suitable for seamless connections between compatible cables. With its Ultra Physical Contact (UPC) design, it enhances signal quality by minimizing reflection losses. It supports operating wavelengths of 1310nm and 1550nm, allowing you to use it for different applications. This product comes in a convenient two-pack, providing you with an extra coupler for future needs.