A 48-port 25GbE/10GbE/GbE SFP28/SFP+/SFP switch with eight 100GbE/40GbE QSFP28/QSFP+ ports and back-to-front airflow.
The EX4650-48Y-AFI is an AC-powered switch with back-to-front airflow, redundant fans, two 650W AC/DC power supplies, and four-post rack mounting. It provides 2 Tbps unidirectional switching capacity and 2976 Mpps Layer 2/Layer 3 throughput with 64-byte packets. The switch has 48 SFP28/SFP+/SFP ports, eight QSFP28/QSFP+ ports, one USB 2.0 port, one RS-232 console port, and two RJ-45 management ports. Its dimensions are 1.72 x 17.36 x 20.48 in (4.37 x 44.09 x 52.02 cm), and its weight is 23.7 lb (10.75 kg).
How this product lines up against others in Enterprise.
| Installation method | Rack 19" | DIN rail | Rack 19", Desktop, Wall |
| Link technology | Ethernet | Ethernet | Ethernet |
| Port speed | 25G | 10G | 10G |
| Rack Units Height | 1 U | — | 1 U |
| Product line | Juniper EX | — | — |
| Lifecycle status | Active | — | — |
| Operating temperature | 0 to 40 °C | — | -5 to 50 °C |
| Specification group | active | — | active |
| Downlink Media Type | Fiber | Ethernet | Ethernet |
| Downlink Ports | 48 ports | 8 ports | 24 ports |
| Downlink Speed | 25 Gbps | 1 Gbps | 1 Gbps |
| Uplink Media Type | Fiber | Fiber | Fiber |
| Uplink Speed | 100 Gbps | 10 Gbps | 10 Gbps |
| AC Input Voltage | 110 to 240 V | — | 90 to 290 V |
| DC Input Voltage | — | 48 to 57 V | — |
| HVDC Input Voltage | — | — | 190 to 290 V |
| Input Frequency | — | — | 45 to 65 Hz |
| PoE | No | Yes | Yes |
| PoE Budget | — | 220 W | 400 W |
| PoE Output Type | — | PoE 802.3af, PoE+ 802.3at | PoE+ 802.3at |
| Input Type | AC mains | DC | AC mains, DC |
| Network Ports | Fiber Optic Transceiver · 25G · Fiber · 48 ports, QSFP · 100G · Fiber · 8 ports | Copper and Ethernet · 1G · Ethernet · 8 ports, Fiber Optic Transceiver · 1G · Fiber · 2 ports, Fiber Optic Transceiver · 10G · Fiber · 2 ports | Copper and Ethernet · 1G · Ethernet · 24 ports, Fiber Optic Transceiver · 10G · Fiber · 4 ports |
| Device Role | Switch | Switch | Switch |
| Width | 440.9 mm | — | — |
| Height | 43.7 mm | — | — |
| Depth | 520.2 mm | — | — |
| Weight | 10.75 kg | — | — |
| Switching capacity | 4000 Gbps | — | — |
| Forwarding capacity | 2976 Mpps | — | — |
| MAC address table size | 288000 count | — | — |
| Power draw | maximum · 450 W, average · 260 W, idle · 160 W | — | — |
| Operating humidity | 5 to 90 % | — | — |
| Storage temperature | -40 to 70 °C | — | — |
| Storage humidity | 0 to 95 % | — | — |
| Maximum altitude | 1829 m | — | — |
| Processor model | Quad-core Intel | — | — |
| CPU maximum clock | 2.3 GHz | — | — |
| Memory capacity | 16 GB | — | — |
| Onboard storage capacity | 64 GB | — | — |
| Cooling method | Active (fan) | — | — |
| Maximum frame size | 9216 bytes | — | — |
| Device management | CLI, SNMP | — | — |
| Rail kit included | Yes | — | — |
| Compliance standard | CAN/CSA C22.2 No. 60950-1, UL 60950-1, EN 60950-1, IEC 60950-1, EN 60825-1, EN 55032, CISPR 32 Class A, EN 55024, CISPR 24, AS/NZS CISPR 32 Class A, FCC Part 15 Class A, ICES-003 Class A, VCCI Class A, CNS 13438 Class A, KN 32 Class A, KN 35 | — | — |
| IP protocols | DHCP, IPv4, IPv6 | — | — |
| Power supply type | Hot-swappable module | — | — |
| Switching features | Spanning Tree (STP, 802.1D), Rapid Spanning Tree (RSTP, 802.1w), Multiple Spanning Tree (MSTP, 802.1s), Link aggregation (LACP, 802.3ad), VLANs (802.1Q), Traffic prioritisation (802.1p), Flow control (802.3x), IGMP snooping, LLDP (802.1AB), Port mirroring, Loop protection, BPDU guard, Storm control | — | — |
| Management protocols | SNMPv1, SNMPv2c, SNMPv3, SSH, Telnet, RADIUS, TACACS+ | — | — |
| Link aggregation groups | 80 count | — | — |
| Ports per aggregation group | 64 ports | — | — |
| QoS queues | 10 count | — | — |
| Switching layer | Layer 3 | — | — |
| Management level | Managed | — | — |
| Airflow direction | Back-to-front | — | — |
| Maximum VLANs | 4093 count | — | — |
| Maximum ARP entries | 64000 count | — | — |
| Maximum ACLs | 1500 count | — | — |
| Directives | RoHS, WEEE, REACH | — | — |
| Stack members | 4 count | — | — |
| IPv4 unicast routes | 360000 count | — | — |
| IPv6 unicast routes | 170000 count | — | — |
| MSTP instances | 64 count | — | — |
| Mirroring sessions | 4 count | — | — |
| Routing protocols | Static routing, RIP, OSPF, IS-IS, BGP, PIM, VRRP, BFD | — | — |
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