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There are 4 iterations of the AirPort Card.
AirPort 802.11b Card
![AirPort 802.11b Card](/images/applewiki/3/3b/AirPort_Card_802.11b.png)
- Wi-Fi Version: 802.11b (unofficially named Wi-Fi 1)
- Data Throughput: Up to 11 megabits per second (Mbps) in perfect conditions
- Range: Up to 150ft (50m) indoors
- Frequency: 2.4 GHz
- Connector: PCMCIA (PC Card)
AirPort Extreme 802.11g Card
![AirPort Extreme 802.11g Card](/images/applewiki/c/cd/AirPort_Extreme_Card.png)
- Wi-Fi Version: 802.11g (unofficially named Wi-Fi 3; backwards compatible to 802.11b)
- Bluetooth Version: Bluetooth 2.0+EDR (Enhanced Data Rate)
- Data Throughput: Up to 54 megabits per second (Mbps) in perfect conditions
- Range: Up to 150ft (50m) indoors
- Frequency: 2.4 GHz
- Connector: Mini PCI for Wi-Fi; USB for Bluetooth. Not user-replaceable.
Integrated AirPort Extreme 802.11a/b/g/n
![](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/Apple-Airport-Extreme-80211g-WiFi-Card.jpg/259px-Apple-Airport-Extreme-80211g-WiFi-Card.jpg)
- Wi-Fi Version: 802.11n Wi-Fi 4 (backwards compatible with 802.11a/b/g)
- Bluetooth Version: Bluetooth 2.0+EDR or Bluetooth 4.0
- Data Throughput: Up to 600 megabits per second (Mbps)
- Range: Up to 230ft (70m) indoors
- Frequency 2.4 GHz; 5 Ghz
- MIMO: Up to 2x3
- Connector: Mini PCIe
Integrated AirPort Extreme 802.11ac
- Wi-Fi Version: 802.11ac Wi-Fi 5 (backwards compatible with 802.11a/b/g/n)
- Bluetooth Version: 4.0
- Data Throughput: 3.5 gigabits per second (Gbps) in perfect conditions
- Range: Up to 230ft (70m) indoors
- Frequency: 2.4 Ghz; 5 Ghz
- MIMO: Up to 2x2
- Connector: Mini PCIe