The K Series Bullet® Bare Fiber Adapter Kit comes with the three most commonly used connectors in the industry (FC, ST & SC) and includes the patented QuickLINK® Universal Mating Sleeve. The QuickLINK® allows for greater flexibility when connecting the Bullet® to any patch/jumper cable with a 2.5mm ferrule or FC, ST, SC, DIN or E2000 connectors.