SFP28 Direct Attach Cables (25G DAC ) are compliant with SFF-8432 and SFF-8402 specifications. Various choices of wire gauge are available from 30 to 26 AWG with various choices of cable length (up
to 5m). The SFP28 passive direct attach copper cable assemblies are high-performance, cost-effective I/O solutions for 25G Ethernet. SFP28 copper cables allow hardware manufacturers to achieve high
port density, configurability, and utilization at a very low direct attach sfp+ copper transceiver cost and reduced power budget of passive copper cable.
As one of professional optical transceiver companies, we also provide a range of optical transceivers, such as 400g optical transceiver, 100g optical transceivers, 40g qsfp+aatransceiver, 25g sfp28
transceiver, 10G SFP+ transceiver, sfp device, etc.
Compatibility of SFP28 DAC Cable
SFP-H25G-CU5M 5M 25G SFP28 DAC
SFP-H25G-CU3M 3M 25G SFP28 DAC
SFP-H25G-CU2M 2M 25G SFP28 DAC
SFP-H25G-CU1M 1M 25G SFP28 DAC
Technical Specification Of SFP28 25G DAC Cable xM
Parameter Symbol Min Typical Max Unit Note
Differential Impedance TDR 90 100 110 Ώ
Insertion loss SDD21 -22.48 -8 dB At 12.8906 GHz
Differential Return Loss SDD11 -12.45 See 1 dB At 0.05 to 4.1 GHz
SDD22 -3.12 See 2 dB At 4.1 to 19 GHz
Common-mode to common-mode output return loss SCC11 -2 dB At 0.2 to 19 GHz
SCC22
Differential to common-mode SCD11 -12 See 3 dB At 0.01 to 12.89 GHz
return loss SCD22 -10.58 See 4 At 12.89 to 19 GHz
Differential to Common Mode SCD21-IL -10 dB At 0.01 to 12.89 GHz
Conversion Loss See 5 At 12.89 to 15.7 GHz
-6.3 At 15.7 to 19 GHz
Channel Operating Margin COM -3 dB