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What is the difference between UPC and APC connectors, and what do StarTech.com fiber products use?

UPC and APC are fiber connector types. UPC (Ultra Physical Contact) connectors have a fiber connector end face that has been polished to a dome-shape. APC (Angled Physical Contact) connectors have a fiber connector end face that has been polished at an eight degree angle. When building fiber solutions, be sure to avoid mixing UPC and APC connectors. UPC and APC cannot mate with one another because causes the fiber cores don’t touch. This can cause a degraded connection or none at all.

StarTech.com fiber products use UPC connectors.

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This FAQ applies to these products:
450FBLCLC15 50FIBLCLC1 50FIBLCLC10 50FIBLCLC15 50FIBLCLC2 50FIBLCLC3 50FIBLCLC30 50FIBLCLC5 50FIBLCSC1 50FIBLCSC2 50FIBLCSC3 50FIBLCST1 50FIBLCST10 50FIBLCST2 50FIBLCST3 50FIBLCST5 A50FBLCLC1 A50FBLCLC10 A50FBLCLC2 A50FBLCLC3 A50FBLCLC5 A50FBLCSC2 FIBLCLC1 FIBLCLC15 FIBLCLC2 FIBLCLC3 FIBLCLC5 FIBLCSC1 FIBLCSC2 FIBLCSC3 FIBLCST1 FIBLCST2 FIBLCST3 FIBSTSC2 FIBSTSC3 SMFIBLCLC1 SMFIBLCLC10 SMFIBLCLC4 SMFIBLCLC7 SMFIBLCSC1 SMFIBLCSC10 SMFIBLCSC4 SMFIBLCSC7 ET1000S40LC2 ET1110PSE ET90110SC2 ET90110SM302 ET90110ST2 ET90110WDM2 ET91000LC2 ET91000LCOAM ET91000SC2 ET91000SM402 ETCHS2U ETCHS2UPSU MCM110SC2EU MCM110ST2EU MCMGBSC055EU MCMGBSC15EU SFP10GSRST SFPF1302C SFPG1320C SFPGESST SFPGLCLHSMST SFPGLCSXMMST SFPSXMM J9150A-ST 3CSFP91ST 450FBLCLC1 450FBLCLC2 450FBLCLC3 450FBLCLC5 455883B21ST AJ716BST AJ717AST ET91000SM10 ET91000SM20 EXSFP10GELRS EXSFP10GESRS EXSFP1GELXST EXSFP1GESXST GLCEXSMDST GLCLHSM10PST GLCLHSMD10ST GLCLHSMDST GLCLXSMRGDST GLCSXMM10PST GLCSXMMDST GLCSXMMRGDST GLCZXSMRGDST J4858C10PKST J4858CST J4859C10PKST J4859CST J9150AST J9151AST J9152AST JD092BST JD094BST JD118BST JD119BST MASFP10GBLR MASFP10GBSR MASFP1GBLX10 MASFP1GBSXST MCM1110MMLC MCMGBSCMM055 MCMGBSCSM10 QSFP40GLR4S QSFP40GLR4ST QSFP40GSR4ST QSFP40LR4ST QSFP40SR4ST SFP1000BXDST SFP1000BXUST SFP1000EXST SFP1000LHST SFP1000LXST SFP1000SXST SFP1000ZXST SFP100BBXDST SFP100BBXUST SFP100BEXST SFP100BFXST SFP100BLHST SFP100BLXST SFP100BZXST SFP10GBBXDST SFP10GBBXUST SFP10GBERST SFP10GBLRMST SFP10GBLRST SFP10GBSRST SFP10GBZRST SFP10GERST SFP10GLRMST SFP10GLRSST SFP10GLRST SFP10GSRSST SFP10GSRXST SFP1GELXST SFPCAP10 SFPLCCAP10
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