The Ranger 2312 comes with the following items in the box:

Remote extender (REX)
Local extender (LEX)
1 x USB 2.0 Type A to Type B cable
100-240V power adapter
Country specific power cord
Quick start guide
*Please be aware that the Ranger 2312 does NOT come with a CAT5e cable.

The Starling 3251C extender system includes:

Local Extender (LEX)
Remote Extender (REX)
USB 3.2 Gen 1 USB-C Cable
Custom Link Cable (10m, CM or Plenum-Rated)
Cable Pulling Eye
Quick Start Guide
Two year warranty

The USB 3.0 Spectra 3001-15 active extender cable includes:

15 meter USB 3.0 Spectra 3001-15 Active Cable
Cable Tie
Quick Start Guide
Two year warranty

USB 3.0 only, 2-Port (Locking) 100m Multimode Fiber Extender System, 100-240V Locking Power
Adapter, JP Power Cord

10/100 Base-T/TX Ethernet Transceiver with MII/RMII Interface