Quick overview from the supplier:
Ubiquiti EdgeRouter 4 ER-4, CPU 4-Core 1 GHz, 1GB, 3xGigabit RJ45 routing ports, 1xGigabit SFP port, 3.4 million packets per second for 64-byte packets, 4 Gbps for packets 128 bytes or larger in size, Silent, fanless operation, Compact, durable metal case
