Production history | |||
---|---|---|---|
Designer | Intel & Apple | ||
Manufacturer | Various | ||
Produced | Since 24 February 2011; 8 years ago[1] | ||
Superseded | IEEE 1394 (FireWire) | ||
General specifications | |||
Length | Maximums:
| ||
Width | 7.4 mm male (8.3 mm female) | ||
Height | 4.5 mm male (5.4 mm female) | ||
Hot pluggable | Yes | ||
Daisy chain | Yes, up to 6 devices[2] | ||
External | Yes | ||
Audio signal | Via DisplayPort protocol or USB-based external audio cards. Supports audio through HDMI converters. | ||
Video signal | Via DisplayPort protocol | ||
Pins | Thunderbolt V1 and V2: 20 Thunderbolt V3: 24 | ||
Connector | Thunderbolt V1 and V2: Mini DisplayPort Thunderbolt V3: USB-C | ||
Electrical | |||
Max. voltage | 18 V (bus power) | ||
Max. current | 550 mA (9.9 W max.) | ||
Data | |||
Data signal | Yes | ||
Bitrate | Thunderbolt V1: 2 channels, 10 Gbit/s each (20 Gbit/s in total)[3] Thunderbolt V2: 20 Gbit/s in total Thunderbolt V3: 40 Gbit/s | ||
Protocol | Thunderbolt V1: 4× PCI Express 2.0,[3]DisplayPort 1.1a[2] Thunderbolt V2: 4× PCI Express 2.0, DisplayPort 1.2 Thunderbolt V3: 4× PCI Express 3.0, DisplayPort 1.2 (2 streams),[4]USB 3.1 gen. 2 | ||
Pin out | |||
Pin 1 | GND | Ground | |
Pin 2 | HPD | Hot plug detect | |
Pin 3 | HS0TX(P) | HighSpeed transmit 0 (positive) | |
Pin 4 | HS0RX(P) | HighSpeed receive 0 (positive) | |
Pin 5 | HS0TX(N) | HighSpeed transmit 0 (negative) | |
Pin 6 | HS0RX(N) | HighSpeed receive 0 (negative) | |
Pin 7 | GND | Ground | |
Pin 8 | GND | Ground | |
Pin 9 | LSR2P TX | LowSpeed transmit | |
Pin 10 | GND | Ground (reserved) | |
Pin 11 | LSP2R RX | LowSpeed receive | |
Pin 12 | GND | Ground (reserved) | |
Pin 13 | GND | Ground | |
Pin 14 | GND | Ground | |
Pin 15 | HS1TX(P) | HighSpeed transmit 1 (positive) | |
Pin 16 | HS1RX(P) | HighSpeed receive 1 (positive) | |
Pin 17 | HS1TX(N) | HighSpeed transmit 1 (negative) | |
Pin 18 | HS1RX(N) | HighSpeed receive 1 (negative) | |
Pin 19 | GND | Ground | |
Pin 20 | DPPWR | Power | |
This is the pinout for both sides of the connector, source side and sink side. The cable is actually a crossover cable, it swaps all receive and transmit lanes; e.g. HS1TX(P) of the source is connected to HS1RX(P) of the sink. |
Wikimedia Commons has media related to Thunderbolt (interface). |