We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact rectangular network switch with three RJ45 ports and one USB-B port, matte black finish

CyberData Corporation

CyberData Corporation 011187 VoIP 2-Port PoE Gigabit Switch

SKU CH-BYR8-5CXN7 MPN 011187

Expands one PoE connection into two Gigabit ports with pass-through power from 802.3af or 802.3at sources

  • TypeAccessories
  • Ports3 x RJ45, 1 x USB-B
  • Weight0.4
  • Expands one PoE link into two powered ports
  • Pass-through PoE draws power from 802.3at or 802.3af upstream
  • Gigabit speed on every RJ45 connection
  • Compact .4 kg chassis fits tight enclosures
  • USB-B port adds local management access

Purpose-built VoIP expansion

The CyberData 011187 adds two powered Ethernet ports to a single PoE uplink for IP phones or endpoints. It draws 802.3at or 802.3af power from the upstream switch and forwards it downstream without a separate supply. The compact unit weighs .4 and includes a USB-B port for management access. Installers needing more drops than the infrastructure provides will find it useful.

Sustained PoE delivery

The switch passes through whatever budget the upstream port negotiates, so total downstream draw cannot exceed that single source. Under continuous load both ports share the same 802.3at or 802.3af pool rather than offering independent budgets. No active cooling is present, so extended high utilisation relies on passive dissipation alone. Buyers who need guaranteed per-port power regardless of neighbour demand cannot rely on this architecture.

Plug-and-play with one caveat

Connect the uplink to a compliant PoE switch, then attach up to two devices — no software configuration is required for basic operation. The USB-B console gives access to status LEDs and diagnostics if troubleshooting is needed. A common mistake is exceeding the upstream power budget, which causes ports to shut down or negotiate lower class. Sites lacking 802.3at or 802.3af infrastructure cannot use this unit at all.

Highlights

  • Expands one PoE link into two powered ports
  • Pass-through PoE draws power from 802.3at or 802.3af upstream
  • Gigabit speed on every RJ45 connection
  • Compact .4 kg chassis fits tight enclosures
  • USB-B port adds local management access

Specifications

BrandCyberData
Model011187
TypeAccessories
Ports3 x RJ45, 1 x USB-B
Weight0.4
Shipping weight0.23 kg
Package size165 × 102 × 25 mm

Questions about this item

Does the 011187 switch add audible fan noise or noticeable heat when powered all day?

The unit has no fan listed in its specifications, so it runs silently; with only 0.4 kg mass and passive cooling, heat output stays low during continuous operation.

What must I already have to power and connect the 011187?

You need an upstream 802.3at or 802.3af PoE switch port and standard RJ45 patch cables; the 011187 draws its own power and passes PoE downstream through its two gigabit ports.

Will my existing Cat5e cabling work with the 011187 gigabit ports?

Yes, the three RJ45 ports auto-negotiate gigabit speeds over Cat5e or better, so legacy cabling in the building remains usable.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.