| Model | ISR4221/K9 |
|---|---|
| Brand | Cisco |
| Aggregate Throughput | 35 Mbps to 75 Mbps |
| Total Onboard WAN/LAN 10/100/1000 Ports | 2 |
| RJ-45-Based Ports | 2 |
| SFP-Based Ports | 1 |
| Enhanced Service-Module Slots | 0 |
| Doublewide Service-Module Slots | 0 |
| NIM Slots | 2 |
| OIR (All I/O Modules) | No |
| Onboard ISC Slot | No |
| Weight | 3.22 kg |
| Default DDR3 ECC DRAM (Combined Control/Services/Data Planes) | 4 GB |
| Maximum DDR3 ECC DRAM (Combined Control/Services/Data Planes) | 4 GB |
| Default DDR3 ECC DRAM (Data Plane) | NA |
| Maximum DDR3 ECC DRAM (Data Plane) | NA |
| Default DDR3 ECC DRAM (Control/Services Plane) | NA |
| Maximum DDR3 ECC DRAM (Control/Services Plane) | NA |
| Default Flash Memory | 8 GB |
| Maximum Flash Memory | 8 GB |
| External USB 2.0 Slots (Type A) | 1 |
| USB Console Port (Type B Mini, up to 115.2 kbps) | 0 |
| Serial Console Port – RJ45 (up to 115.2 kbps) | 1 (combo CON/AUX port) |
| Serial Auxiliary Port – RJ45 (up to 115.2 kbps) | 1 (combo CON/AUX port) |
| Power Supply Options | External: AC Only |
| Redundant Power Supply | N/A |
| AC Input Voltage | 100 to 240 VAC autoranging |
| AC Input Frequency | 47 to 63 Hz |
| AC Input Current Range (Max) | 1.5 to 0.6A |
| AC Input Surge Current | 90 A peak, <3 Arms per half cycle |
| Typical Power (No Modules) | 24 W |
| Maximum Power with AC Power Supply | 90 W |
| Maximum Power with PoE Power Supply (Platform Only) | NA (no PoE support) |
| Maximum Endpoint PoE Power (PoE Power Supply) | NA (no PoE support) |
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