Description
Description
The Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter lets you connect Thunderbolt and Thunderbolt 2 devices — such as external hard drives and Thunderbolt docks — to any of the Thunderbolt 3 (USB-C) ports on your MacBook Pro.
As a bidirectional adapter, it can also connect new Thunderbolt 3 devices to a Mac with a Thunderbolt or Thunderbolt 2 port and macOS Sierra.
In addition, it can be used to connect Thunderbolt-enabled displays — such as the Apple Thunderbolt Display and LG Thunderbolt 2 displays — to any of the Thunderbolt 3 (USB-C) ports on your MacBook Pro. However, using this adapter with an Apple Thunderbolt Display requires a power source, because the display does not provide power through the adapter.
Note: This adapter does not support DisplayPort displays like the Apple LED Cinema Display or third-party DisplayPort and Mini DisplayPort displays. For more information, visit the Apple Support page for the Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter.
What’s in the Box
  Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter
  Tech Specs
  Thunderbolt 2
  Thunderbolt 3 (USB-C)
  USB-C
Specifications
| Feature | Specification |
| Product Category | Active Bi-Directional Thunderbolt Generation Interconnect Adapter |
| Brand / Ecosystem | Apple Inc. Mac Pro, MacBook, and Studio Ecosystem |
| Model Number | MMEL2 (Alternative Part Numbers: MMEL2AM/A, MMEL2ZM/A) |
| Chassis Material & Color | Matte Finish High-Density Impact Polymer, Apple Signature White |
| Primary Connector (Male) | 1Ă— Thunderbolt 3 (USB-C) Male Plug with Integrated Lead |
| Secondary Interface (Female) | 1Ă— Legacy Thunderbolt 2 (Mini DisplayPort Form Factor) Female Receiver |
| Data Throughput Speed | Bi-directional bandwidth up to 20 Gbps (Thunderbolt 2 Speed Limit) |
| Signal Architecture | Pure Thunderbolt Native Passthrough (Does not support standard USB or DP) |
| Setup Configuration | 100% Native macOS Driverless Integration (Plug-and-Play) |
| Power Infrastructure | Host Bus-Powered via active connection path |
| Hardware Compatibility | Thunderbolt 3/4 (USB-C) Macs and self-powered Thunderbolt 1/2 hardware |

























