+, the firmware of this TL-ER5120 is extremely more complete, more manageable, a little more complicated when setting up but it is truly wonderful, is a very robust two-way level firmware and hardware, has a dualcore processor 500MHZ MIPSC64 and 128MB of DDRII rAM, capable of supporting up to 120,000 concurrent sessions which could translate into about 200 ~ 300 pcs, I highly recommend this router