Description
Condition: NEW — Brand new, factory-sealed unit. Manufacturer Part #: MS355-48X-HW
Cisco Meraki MS355-48X 48-Port Multigigabit UPoE Switch — 32 × 1G + 16 × mGig RJ45, 740 W UPoE, 400G Physical Stack, 1U Rack
The Cisco Meraki MS355-48X scales multigigabit access to 48 ports in a single 1U chassis, pairing 32 standard 1G RJ45 ports with 16 multigigabit (100M/1G/2.5G/5G/10G) RJ45 ports for mixed-speed wiring closet deployments. A 544 Gbps non-blocking fabric and 400G physical stacking bandwidth allow four units to be interconnected with rapid failover. The 740 W UPoE budget and three hot-swap fans with dual removable power supply slots deliver the resilience required in always-on enterprise environments.
Technical Specifications
| Device Type | Managed Stackable Layer 3 Gigabit/Multigigabit Switch, 1U Rack |
| Form Factor | 1U Rack-Mountable |
| Ports | 32 × 1G RJ45 (PoE+/UPoE); 16 × 100M/1G/2.5G/5G/10G mGbE RJ45 (PoE+/UPoE); 4 × 10G SFP+ (uplink); 2 × 40G QSFP+ (uplink); 2 × 100G dedicated hardware stack ports |
| Power over Ethernet (PoE) | UPoE (802.3af / 802.3at / UPoE) |
| PoE Budget | 740 W |
| Switching Capacity | 544 Gbps |
| Management Protocols | Cisco Meraki Cloud Dashboard (SNMP, Syslog); Layer 3: OSPFv2, static routing, VRRP warm spare; IEEE 802.1x port-based NAC; DHCP server and relay |
| Key Features | 400G physical + virtual stacking (up to 4 units), hot-swap dual PSU slots, 3 × hot-swap fans, UPoE per-port power, layer 7 application visibility, VLAN (802.1Q), QoS, RSTP/BPDU guard, LACP, DHCP snooping, Dynamic ARP Inspection, IGMP snooping, port mirroring, LLDP, Role-Based Access Control |
| Compliant Standards | IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p, IEEE 802.1w (RSTP), IEEE 802.1x, IEEE 802.1ab (LLDP), IEEE 802.3af (PoE), IEEE 802.3at (PoE+), IEEE 802.3ad (LACP) |
| Input Power | AC 120/230 V, 50/60 Hz; internal removable PSU (1 × MA-PWR-1025WAC included; 2nd slot optional) |
| Dimensions (W×D×H) | 19.1 × 20 × 1.7 in |
| Weight | 16.05 lbs |
Best Used For
Well-suited for large open-plan offices, hospital floors, or campus buildings where the majority of endpoints are standard 1G devices but a subset of high-performance wireless APs or workstations need mGig uplinks—all from a single, cost-effective 1U switch.
