Juniper Networks 32-Port 10-Gigabit BASE-T EX4550 Switch EX4550-32T-AFO.Model Number: EX4550-32T-AFOPart Number: 750-039070Compatible Part Numbers: CMMEV10ARAIncludes:• Three Delta Brushless 12V 1.82A Cooling Fans GFB0412EHS.• One Juniper Networks 2-Port 40G QSFP+ Expansion Module EX4550-EM-2QSFP.• Two Juniper Networks 650 Watt Power Supply Modules JPSU-650W-AC-AFO-A.Features:• One rack unit (1U)• 32 RJ-45 Port• 10-Gigabit BASE-T• Front-to-back—air intake to cool the chassis is through the vents on the front panel of the chassis, and hot air exhausts through the vents on the rear panel of the chassis.