Specification Brand : MikroTik BulletPoint1 : S-35/53LC20D is a pair (S-35LC20D and S-53LC20D) of SFP transceiver BulletPoint2 : S-35LC20D is a 1.25G Single Mode optical SFP module with a LC connector, T1310nm/R1550nm, which works for connections up to 20km and supports DDM BulletPoint3 : S-53LC20D is a 1.25G Single Mode optical SFP transceiver with an LC connector,T1550nm/R1310nm, which works for connections up to 20km and supports DDM BulletPoint4 : Tested and compatible with RB260GS, RB2011LS, RB2011LS-IN, RB2011UAS-IN, RB2011UAS-RM, RB2011UAS-2HnD, RB2011UAS-2HnD-IN CCR1036-12G-4S BulletPoint5 : Connector: LC UPC; Data Rate: 1.25G; Distance: 20KM; Format: SFP; Mode: SM; Tested ambient temperature: -40 to +70C Color : Gray ConnectivityTechnology : Ethernet CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 733115909240 ExternallyAssignedProductIdentifier2 : 0733115909240 ExternallyAssignedProductIdentifier3 : 00821455178058 FrequencyBandClass : dual_band GpsrSafetyAttestation : 1 IncludedComponents : Converter ItemDisplayDimensions_Height : 1 inches ItemDisplayDimensions_Length : 5 inches ItemDisplayDimensions_Width : 2 inches ItemName : MikroTik S-3553LC20D, Two SFP (1. 25G) module kit, 20km, Single Mode ItemPackageDimensions_Height : 10.7 centimeters ItemPackageDimensions_Length : 0.7 centimeters ItemPackageDimensions_Width : 8.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : network-transceivers Manufacturer : Mikrotik ModelNumber : S-3553LC20D NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : S-3553LC20D ProductDescription : S-35/53lc20d is a pair of sfp transceivers, the s-35lc20d is a 1. 25g single mode optical sfp module with a lc connector, t1310nm/r1550nm, which works for connections up to 20km and supports ddm. The s-53lc20d is a 1. 25g single mode optical sfp transeiver with an lc connector, t1550nm/r1310nm, which works for connections up to 20km and supports ddm. . . Units are testedpatible with rb260gs, rb2011ls, rb2011ls-in, rb2011uas-in, rb2011uas-rm, rb2011uas-2hnd, rb2011uas-2hnd-in ccr1036-12g-4s. Unitspatible with non-mikrotik sfp devices as well. Product specifications details. Product code: s-3553lc20d. Data rate: 1. 25g. Distance: 20km. Mode: sm. Connector: lc. Format: sfp. ProductSiteLaunchDate : 2017-10-03T10:51:05.310Z Size : 1000Base-LX: 10km SpecificUsesForProduct : Personal StreetDate : 2019-05-16T00:00:01Z SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 43200000 WarrantyDescription : Limited Warranty