Electrical connector assembly

1. An electrical connector assembly, comprising:

a housing comprising an upper housing half removably assembled to a lower housing half via a plurality of fasteners, the upper and lower housing halves defining a housing cavity therebetween;

a circuit board at least partially disposed in the housing cavity and comprising:

a mating end for mating with electrical contacts of a mating connector, and a cable end opposite the mating end and disposed inside the housing cavity;

a plurality of conductive front pads disposed near the mating end of the circuit board; and

a plurality of conductive rear pads disposed between the front pads and the cable end and electrically connected to the front pads;

stacked first, second and third flat cables terminated at the conductive rear pads disposed on an upper major surface of the circuit board;

a fourth flat cable terminated at the conductive rear pads disposed on an opposing lower major surface of the circuit board; and

a plurality of alternating ridges and channels disposed on a top side of the upper housing half and extending along a length of the housing, wherein bottom surfaces of the channels along a length of the channels are at a same height or higher than uppermost surfaces of the fasteners in the plurality of fasteners, wherein the fasteners comprise a pair of fasteners disposed between a front end of the channels and a front end of the upper housing half, and wherein the fasteners pass through the circuit board.

2. The electrical connector assembly of claim 1 , wherein the plurality of conductive front pads forms a first row of conductive front pads disposed on the upper major surface of the circuit board near the mating end, and a second row of conductive front pads disposed on the lower major surface of the circuit board near the mating end.

3. The electrical connector assembly of claim 1 , wherein the plurality of conductive rear pads forms spaced apart substantially parallel first, second and third rows of conductive rear pads disposed on the upper major surface of the circuit board between the front pads and the cable end, and a fourth row of conductive rear pads disposed on the lower major surface of the circuit board between the front pads and the cable end.

4. The electrical connector assembly of claim 3 , wherein the first, second and third flat cables are terminated at the respective first, second and third rows of conductive rear pads, and the fourth flat cable is terminated at the fourth row of conductive rear pads.

5. The electrical connector assembly of claim 1 , wherein the channels have open front and rear ends, wherein the bottom surface of each channel comprises an inclined surface portion disposed between substantially horizontally oriented front and rear surface portions, and wherein the channels are configured to transfer heat generated by the connector assembly.

6. The electrical connector assembly of claim 1 , wherein each of the first, second, third and fourth flat cables comprises a plurality of conductors, and wherein at least some of the conductors in the plurality of conductors have diameters not greater than 24 American Wire Gauge (AWG).

7. The electrical connector assembly of claim 6 , wherein at least some of the conductors in the plurality of conductors have diameters not greater than 26 American Wire Gauge (AWG).

8. The electrical connector assembly of claim 6 , wherein at least some of the conductors in the plurality of conductors have diameters not greater than 28 American Wire Gauge (AWG).

9. The electrical connector assembly of claim 6 , wherein at least some of the conductors in the plurality of conductors have diameters not greater than 30 American Wire Gauge (AWG).

10. The electrical connector assembly of claim 1 , wherein at least one of the fasteners in the plurality of fasteners comprises a nut threadably engaging a bolt.

11. The electrical connector assembly of claim 1 , wherein at least one of the fasteners in the plurality of fasteners comprises a rivet.

12. The electrical connector assembly of claim 1 , wherein the housing is a housing of an octal small form-factor pluggable (OSFP) connector.

13. The electrical connector assembly of claim 1 , wherein the upper and lower housing halves are made of metal.

14. An electrical connector assembly, comprising:

a housing comprising an upper housing half removably assembled to a lower housing half via a plurality of fasteners, the upper and lower housing halves defining a housing cavity therebetween;

a circuit board at least partially disposed in the housing cavity and comprising a plurality of conductive pads;

at least three flat cables terminated at the conductive pads; and

a plurality of alternating ridges and channels disposed on a top side of the upper housing half and extending along a length of the housing, the channels comprising open front and rear ends, wherein bottom surfaces of the channels along a length of the channels are at a same height or higher than uppermost surfaces of the fasteners in the plurality of fasteners, and wherein the bottom surface of each channel comprises an inclined surface portion disposed between substantially horizontally oriented front and rear surface portions, wherein the fasteners comprise a pair of fasteners disposed between a front end of the channels and a front end of the upper housing half, and wherein the fasteners pass through the circuit board.

15. The electrical connector assembly of claim 14 , wherein at least one of the fasteners in the plurality of fasteners comprises a rivet.