The BlueRobotics Fathom ROV Tether 4 Twisted Pairs, 300m is a professional-grade tether designed for robust subsea applications, offering a combination of strength, durability, and high-performance electrical characteristics. This tether is specifically engineered for remotely operated vehicles (ROVs) and other underwater applications, featuring a neutrally buoyant design that ensures optimal performance in various aquatic environments. The tether is equipped with a pre-installed Binder 770 connector and WetLink Penetrator, facilitating seamless integration with the BlueROV2 and other watertight enclosures.
The tether's slim profile, with diameters of 4mm and 7.6mm, significantly reduces drag, making it ideal for deep, high-current, and long-distance dives. This design enhances portability and ease of handling, with a 100-meter length weighing only 3 lb (1.4 kg). The tether incorporates four unshielded twisted pairs (UTP) of 26AWG wire, arranged similarly to a Cat5 networking cable, providing crosstalk resistance and reliable communication. The core of the cable is reinforced with Kevlar strands for strength and Dacron fibers for space filling, both impregnated with a water-blocking compound to prevent leaks from nicks or rips.
The high-visibility yellow polyurethane foam jacket offers abrasion resistance and maintains neutral buoyancy, while the cable's flexibility prevents tangling, ensuring freedom of movement for the ROV. This tether is designed to provide versatility and adaptability for a wide range of subsea applications, with a maximum rated depth of 950 meters and a design lifetime of three years or 500 cycles to the rated depth.
Note: Ensure proper handling to avoid damage to the tether, which could compromise its water-blocking capabilities.
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".