Description
Details that matter
- Layer 3, 802.1X authentication
 - Warm spare redundancy (VRRP), STP enhancements
 - OSPF routing, MAC forwarding entries, up to 32K
 - DHCP server, DHCP relay, DHCP snooping
 - IPv4 and IPv6 ACLs
 
Maximize your bandwidth
- Eight mGig ports 16 1G ports
 - Two 40G or four 10G fiber uplinks
 - 400 Gbps of physical stacking, up to eight units
 - QSFP28 stacking ports
 
Power/PoE
- All models include 740W
 - Up to 30W per 1G port
 - Up to 60W per mGig port
 - Modular power supply/fans
 
Enterprise hardware and support
- All models include 740W
 - Up to 30W per 1G port
 - Up to 60W per mGig port
 - Modular power supply/fans
 
Cloud managed
- Email alerts for switch management
 - Remote troubleshooting tools, zero-touch provisioning
 - Manage ports from a GUI-based dashboard; per-port and per-client usage statistics
 - Secure, user-scheduled firmware updates
 
Accessories

MA-CBL-100G-1M

MA-CBL-100G-3M

MA-CBL-100G-50CM

MA-CBL-TA-1M

MA-CBL-TA-3M

MA-FAN-18K

MA-PWR-1025WAC

MA-QSFP-40G-CSR4

MA-QSFP-40G-LR4

MA-QSFP-40G-SR-BD

MA-QSFP-40G-SR4

MA-RCKMNT

MA-SFP-10GB-ER

MA-SFP-10GB-LR

MA-SFP-10GB-LRM

MA-SFP-10GB-SR

MA-SFP-10GB-ZR

MA-SFP-1GB-LX10

MA-SFP-1GB-SX

MA-SFP-1GB-TX
Context and Comparisons
| MS350-24P | MS350-24X | MS355-24X | |
| 1GbE RJ45 | 24 | 16 | 16 | 
| mGbE RJ45 (100M/1G/2.5G/5G/10G) | – | 8 | 8 | 
| 10GbE SFP+ | 4 | 4 | 4 | 
| 40GbE QSFP+ | – | – | 2 | 
| Hardware Stack Port | 2 | 2 | 2 | 
| Dedicated Management Interface | 1 | 1 | 1 | 
| Hot Swap Power Supply | Yes, Dual | Yes, Dual | Yes, Dual | 
| Hot Swap Fans | Yes, 2x | Yes, 2x | Yes, 3x | 
| Layer 3 Routing | Yes | Yes | Yes | 
| UPoE Capable | No, 370W | Yes, 740W | Yes, 740W | 
| Max Switching Capacity | 128 Gbps | 272 Gbps | 352 Gbps | 
| Max Stacking Bandwidth | 160 Gbps | 160 Gbps | 400 Gbps | 
Technical Breakdown
Hardware Breakdown
| MS355-24X | MS355-24X2 | MS355-48X | MS355-48X2 | |
| 1GbE RJ45 | 16 | – | 32 | 24 | 
| mGbE RJ45 (100M/1G/2.5G/5G/10G) | 8 | 24 | 16 | 24 | 
| 10GbE SFP+ | 4 | 4 | 4 | 4 | 
| 40GbE QSFP+ | 2 | 2 | 2 | 2 | 
| Hardware Stack Port | 2 | 2 | 2 | 2 | 
| Dedicated Mgmt Interface | 1 | 1 | 1 | 1 | 
| Hot Swap Power Supply | Yes, Dual | Yes, Dual | Yes, Dual | Yes, Dual | 
| Hot Swap Fans | Yes, 3x | Yes, 3x | Yes, 3x | Yes, 3x | 
Cabling Best Practices for Multi-Gigabit operations: While Category-5e cables can support multigigabit data rates upto 2.5/5 Gbps, external factors such as noise, alien crosstalk coupled with longer cable/cable bundle lengths can impede reliable link operation. Noise can originate from cable bundling, RFI, cable movement, lightning, power surges and other transient event. It is recommended to use Category-6a cabling for reliable multigigabit operations as it mitigates alien crosstalk by design.
Throughput and Capabilities
| MS355-24X | MS355-24X2 | MS355-48X | MS355-48X2 | |
| Layer 3 Routing | Yes | Yes | Yes | Yes | 
| UPoE Capable | Yes, 740W | Yes, 740W | Yes, 740W | Yes, 740W | 
| Switching Capacity | 352 Gbps | 640 Gbps | 544 Gbps | 688 Gbps | 
| Stacking Bandwidth | 400 Gbps | 400 Gbps | 400 Gbps | 400 Gbps | 
Physical
| MS355-24X | MS355-24X2 | MS355-48X | MS355-48X2 | |
| Mount Type | 1U Rack Mount | 1U Rack Mount | 1U Rack Mount | 1U Rack Mount | 
| Dimensions (h x w x d) | 1.7 x 19.1 x 20 in /
 4.37 x 48.46 x 51.66 cm  | 
1.7 x 19.1 x 20 in /
 4.37 x 48.46 x 51.66 cm  | 
1.7 x 19.1 x 20 in /
 4.37 x 48.46 x 51.66 cm  | 
1.7 x 19.1 x 20 in /
 4.37 x 48.46 x 51.66 cm  | 
| Weight | 15.34 lbs / 6.96 kg | 15.08 lbs / 6.84 kg | 16.05 lbs / 7.28 kg | 16.15 lbs / 7.33 kg | 
| Power Supply | 1025W AC | 1025W AC | 1025W AC | 1025W AC | 
| Power Load (idle/max) | 110W / 1793W | 110W / 1793W | 110W / 1793W | 110W / 1793W | 
| Operating Temperature | 32°F – 113 °F 0°C – 45°C  | 
32°F – 113 °F 0°C – 45°C  | 
32°F – 113 °F 0°C – 45°C  | 
32°F – 113 °F 0°C – 45°C  | 
| Humidity | 5% to 95% | 5% to 95% | 5% to 95% | 5% to 95% | 
								




					
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