2025 B3 waterproof flash bulkhead and hotshoe upgrade kit for Ikelite DL and DLM housings. It features a hard-anodized aluminum body with gold-plated connectors, slimmer flexible cabling for easier routing, flat connector terminations to reduce wire breakage, a low-profile design for improved clearance, and non-locking safety connectors. Auto-switching is available for Canon, Nikon, Olympus/OM System and Panasonic but not for Sony. This variant is the Sony (TTL) configuration.