You’ve probably seen the headlines. MikroTik just dropped a 1.6Tbps switch for $1,100. For the homelab crowd, that’s the sound of a price barrier shattering. It feels like we’ve finally stolen datacenter-grade hardware at consumer prices.
But before you empty your bank account, take a breath. The switch is cheap; the ecosystem will bankrupt you.
Look at the MikroTik CRS804-4DDQ-HRM. It boasts four 400GbE QSFP56-DD ports. That sounds liberating until you realize you can’t just plug a 10G or 1G copper cable into this beast. As one user pointed out, you can’t break these ports down to standard speeds without buying *another* switch entirely. You’re locked into 400G or 100G infrastructure whether you like it or not.
And let’s talk about the gear required to actually push those speeds. To utilize a 400GbE NIC, you need a PCIe 5.0 x16 slot. If you’re on an AM5 motherboard, that means physically ripping out your GPU just to plug in a network card. Furthermore, a genuine Arista 400G passive DAC cable alone costs more than this entire MikroTik switch. You bought the chassis, but the tires are sold separately—and they’re made of gold.
Here is the real generational shift that nobody is talking about. The MikroTik CRS804 features a 10GbE management port. A management port! For years, 10Gbps was the holy grail of homelab networking. People spent hundreds of dollars on fiber cards and switches just to hit that ceiling. Now, it’s relegated to the interface you use to configure the box. 10GbE is no longer a flex; it’s the networking equivalent of a VGA port.
If you’re asking whether 25Gbps is enough to saturate your SSDs, you do not need this switch. You don’t buy a Formula 1 car to commute to the grocery store, and you don’t buy a 1.6Tbps switch to link two NAS units in your basement.
The MikroTik CRS804 is an engineering marvel. It proves that 400G silicon is finally trickling down. But the surrounding ecosystem—the optics, the PCIe lanes, the port granularity—isn’t ready for us. The hardware is a glimpse of the future, but right now, it’s a trap disguised as a bargain.
FAQ
Q: Is $1,100 actually cheap for 400GbE?
A: Historically, yes. A single 400G Arista passive DAC cable costs more than this entire switch. The chassis is an absolute steal; it's the surrounding ecosystem that will drain your budget.
Q: Can I use this switch to upgrade my existing 10G homelab?
A: No. The high-density 400G ports cannot be directly broken down to 10G or 1G without buying another intermediary switch, locking you into expensive 100G/400G optics just to connect slower devices.
Q: Does this mean 10GbE is finally dead?
A: For high-end networking, yes. The fact that 10G is now relegated to a management port on this switch proves that baseline networking expectations have fundamentally jumped a generation.