HIGH-DENSITY COPPER FLYOVER SYSTEM FEATURES & BENEFITS Pin compatible with optical FireFly x4 Bidirectional ECUE using the same connector system 14 x12 Unidirectional ECUE Gbps Data connection is taken off board for easier routing Low-cost solution for seamless integration of new and existing designs Low-profile housing for space savings x4 Bidirectional ECUE-2 x4 bidirectional or x12 unidirectional Variety of end 2 termination options Optimized Copper (ECUE-2) Standard Copper (ECUE) PCI Express -Over-FireFly Copper (PCUE) 28 Gbps card design 14 Gbps PCIe 4.0 100 W , 34 AWG Eye Speed 100 W , 34 AWG or 36 AWG ultra low skew twinax cable Eye Speed twinax cable 100 W , 34 AWG Eye Speed ultra low skew twinax cable Optimized for use with connector UEC5-2 Optimized for use with connector UEC5-2 F-221 samtec.com/FireFly Unless otherwise approved in writing by Samtec, all parts and components are designed and built according to Samtecs specifications which are subject to change without notice.28 Gbps LOW-PROFILE MICRO FLYOVER CABLE NO OF ASSEMBLY CABLE END 2 WIRING DATA RATE OPTION SERIES - PAIRS - LENGTH - TYPE - OPTION - OPTION - - Leave blank ECUE 08 XXX T1 FF 01 1 for standard = Rugged = Eight Pair = Assembly = 36 AWG = FireFly (Mates = Pin A1 to = 14 Gbps FireFly FireFly ( T2 & T3 Length in twinax with UEC5/UCC8) Pin A19 (T1 or T2 Cable Assembly cable only) Centimeters (12 pairs only) only) D1 (007 cm to 02 = Decoupling 999 cm) 12 T2 = Pin A1 to 2 Capacitors = Twelve Pair = 34 AWG Pin B1 = 28 Gbps (only available (T1 cable twinax (T3 only) with 02 only) (08 pairs only) B4 & B4 wire = Pin A1 to options) T3 Pin B19 ECUE = 34 AWG (08 pair only) ultra low skew Board Mates: twinax UEC5, UCC8 (08 pairs only) (11.70) .461 ASSEMBLY LENGTH 1% (11.50) .453 ECUE12XXXT1 SHOWN ECUE08XXXT3 SHOWN Notes: All FireFly designs, specifications and components (7.98) are preliminary and subject to .314 change without notice. (20.10) .791 Cable lengths longer than 150 cm (59.06 ) are not supported with S.I. test data. View complete specifications at: samtec.com ECUE CABLE SPEED NO. OF CHANNELS END 2 SERIES - - - LENGTH - PCUE G4 04 XXX FF = PCIe -over- = Gen 4 Speed = 8 pairs = Overall Length in Centimeters = FireFly FireFly Copper (010 cm to 999 cm) (Mates with UEC5/UCC8) Flyover PCUE Board Mates: UEC5, UCC8 ASSEMBLY LENGTH 1% Notes: (11.70) Supports PCIe .461 sideband signals Two additional low speed (7.98) channels compatible with .314 PCUO or custom usage (20.10) .791 Decoupling capacitors in-line PCUEG404XXXFF with signals on PCB. PCI-SIG , PCI Express and the PCIe design marks are registered trademarks and/or service marks of PCI-SIG. Some sizes, styles and options are non-standard, View complete specifications at: samtec.com PCUE non-returnable. F-221 samtec.com/FireFly Unless otherwise approved in writing by Samtec, all parts and components are designed and built according to Samtecs specifications which are subject to change without notice.