Free 1-2 Day Shipping | Get up to 10% cashback | Need It Today? Same-Day Delivery Within 50 Miles

Sea & Sea Fiber-Optic Cable II M/2 Connectors

Sea & Sea  |  SKU: SS-50128
(19)
Refer & Earn

FREE complimentary dive gear with qualifying purchases. Some exclusions may apply. Learn more.

Sold out
Sale
$94.95 $104.45
Shipping calculated at checkout.

Pick accessories — 90% off with your $50+ order

and your picks are free.

 

Start  $501 pick $1252 picks

  • DiveCatalog DIN Cap for 1st Stage (Female) for Scuba Diving Tanks - Scuba Essentials

    $19.95$2.00

    1

  • DiveCatalog Hose Clamp for Scuba Diving - Scuba Essentials

    $17.95$1.80

    1

  • DiveCatalog Neoprene Mask Strap Cover

    $17.00$1.70

    1

  • DiveCatalog Silicone Mouthpiece Replacement w/ installation - Scuba Essentials

    $14.95$1.50

    1

  • DiveCatalog Rubber Tank Valve Protector for Scuba Diving Tanks - Scuba Essentials

    $11.95$1.20

    1

90% off applies automatically at checkout on orders of $50+ — or free for signed-in members. Not combinable with discount codes.

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Product Information

The Sea & Sea Fiber-Optic Cable II M/2 Connector (SS-50128) is a 453mm fiber-optic sync cable built from 613 fiber cores that carries the start and stop flash signal from a camera housing's built-in flash to a Sea & Sea strobe. It is made from methacrylic resin (polymethyl methacrylate), measures 1.5mm in fiber diameter and 2.7mm in cable diameter, and Sea & Sea states it resists bending and physical impact better than single-core fiber cables.

Who it is for

This cable suits underwater photographers who need a mid-length connection between a camera housing's built-in flash and a Sea & Sea strobe. The M/2 length sits between the shorter S/2 (310mm) and longer L/2 (725mm) versions of the series.

Key details

  • Fiber construction: 613 individual fiber cores within a single 2.7mm cable.
  • Fiber diameter: 1.5mm (0.059 inch).
  • Overall length: 453mm (17.8 inches).
  • Material: methacrylic resin, also known as polymethyl methacrylate.
  • Function: transmits the camera flash's start/stop signal to trigger the strobe.

Compatibility and sizing

The Fiber-Optic Cable II series is published in three lengths: the S/2 connector (50135) at 310mm, this M/2 connector (50128) at 453mm, and the L/2 connector (50133) at 725mm. The series is published in three lengths: S/2 (50135) at 310mm, this M/2 (50128) at 453mm, and L/2 (50133) at 725mm.

DiveCatalog.com is an authorized Sea & Sea dealer and a dive shop in Irvine, California, serving divers since 2003. Call or chat with us at 888-701-4017 if you need help confirming cable length or connector fit for your housing and strobe setup.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

How long is the L/2 Fiber-Optic Cable II, and how do the S and M versions compare?

The L/2 connector version, product number 50133, has a total length of 725 mm, which is 28.5 inches. Sea & Sea publishes the same cable in two shorter lengths: the S/2 connector (50135) at 310 mm and the M/2 connector (50128) at 453 mm. Choose the L length when your strobe sits far from the housing or the cable has to route around arms, ports or handles.

Why does a 613 core fiber bundle matter?

The Fiber-Optic Cable II uses a bundle of 613 fiber cores inside one strand instead of a single solid fiber. That construction keeps attenuation of light minimal even when the cable is bent, so the flash start and stop signal reaches the strobe without loss. It also makes the cable more resistant to distortion, bending and physical impact than single fiber cable types.

Can I use this cable with the Sea & Sea optical converter?

No. Per Sea & Sea's FAQ, the L-type cable is not used with the optical converter; those configurations call for the standard Fiber-Optic Cable II instead. If you are building a converter-based setup, contact DiveCatalog at 888-701-4017 before ordering so we can confirm which cable and connector type your housing and strobe combination needs.

Will it work with strobes from other brands?

Sea & Sea specifies the Fiber-Optic Cable II for use with Sea & Sea strobes, and notes that other manufacturers' fiber cables have caused reported issues. The cable terminates in Sea & Sea L/2 connectors, so fit depends on your strobe's optical port. Reach out with your exact housing and strobe models and we will confirm compatibility before you buy.

What is the Sea & Sea Fiber-Optic Cable II M/2 made of?

The M/2 cable is made from methacrylic resin, also called polymethyl methacrylate, a plastic fiber-optic material. This construction houses 613 individual fiber cores inside a single 2.7mm cable, giving a 1.5mm fiber diameter. Sea & Sea states this composition keeps light attenuation minimal even when the cable bends, and resists bending and impact better than single-core fiber cables.

How thick are the fiber core and cable on the M/2 connector?

The Fiber-Optic Cable II M/2 has a fiber diameter of 1.5mm (0.059 inch) and an overall cable diameter of 2.7mm (0.105 inch). The cable measures 453mm (17.8 inches) in total length, placing it between the shorter S/2 (310mm) and longer L/2 (725mm) versions in Sea & Sea's lineup.

What signal does the Fiber-Optic Cable II M/2 carry?

This cable transmits the start and stop flash signal from a camera housing's built-in flash to a Sea & Sea strobe. Its 613-core fiber bundle is designed to carry that light signal with minimal attenuation, even when the cable is bent, so the strobe fires in sync with the camera's flash.

Review summary

4.8 19 ratings across the web