fineconn is professional in manufacturing  MRJ21 Cable Assemblies. 

The MRJ21 Key Features 

1.Dense RJ21 style double blade design with offset jackscrews 

2. Contact layout and footprint for differential pairs creates reduced crosstalk and built-in compensation 

3. 1.5 to 4 times the port density of 2x6 Stacked Modular Jack (RJ45) 

4.3 times the port density of an RJ21 connector 

5. Height of dual receptacle meets requirements of Compact PCI component standard 

6. Jackscrews for positive latching and secure cable retention 

7.Fully shielded system to control electro magnetic interference (EMI) 

8. Robust die cast cable covers provide 45° left or right cable exit for ease of routing 

9. 1mm pair spacing, 1.5mm pair-to-pair spacing

MRJ21 Applications 

1.Switches 

2.Core and Edge Routers 

3. Digital Cross Connects 

4. Gigabit Ethernet, 10/100BASE-T 

5. DSLAM (Digital Subscriber Line Access Multiplexer) 

6. Almost any place modular plugs are used today