Apple AirPort Extreme Base Station A1521 (ME918LL/A)

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Apple A1521 (ME918LL/A)
Availability: EoL

FCC approval date: 10 June 2013
(Est.) release date: 11 June 2013
(Est.) initial retail price (in USD): $199
UPC: 885909746040 (UPC DB, On eBay)
Country of manuf.: China

Amazon image

B00DB9WCR6 (Flag of the United States.svg, On Amazon, On CCC)

Type: wireless router

IC ID: 579C-A1521

Power: 100-240 VAC ~ 50-60 Hz, 1.5 A
Connector type: C7

CPU1: Broadcom BCM53019A1 (1 GHz, 2 cores)
FLA1: 32 MiB33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br /> (Micron 25Q256A)
RAM1: 512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br /> (SK hynix H5TC4G63AFR)

Expansion IFs: USB 2.0
USB ports: 1

WI1 chip1: Broadcom BCM4360
WI1 802dot11 protocols: an+ac
WI1 MIMO config: 3x3:3
WI1 antenna connector: U.FL
WI2 chip1: Broadcom BCM4360
WI2 802dot11 protocols: bgn
WI2 MIMO config: 3x3:3
WI2 antenna connector: U.FL

ETH chip1: Broadcom BCM53019A1
Switch: Broadcom BCM53019A1
LAN speed: 1G
LAN ports: 3
WAN speed: 1G
WAN ports: 1


Flags: RTC w/ battery backup

802dot11 OUI: 90:72:40
Ethernet OUI: 90:72:40

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

AirPort Extreme 3x3 MIMO Base Station

switches to new tower style design
BCM53019 SoC (appears to be a BCM53019A1 [BCM53019A1KFEBG])
indicates usage of BCM4360 (BCM4360KLMG) radios for both bands (...)
Skyworks SE5003L1 (5003L1) 5GHz WLAN power amplifier ICs for the 5GHz radio
Skyworks SE2623L (2623L) 2.4GHz WLAN power amplifier ICs for the 2.4GHz radio
"820-3646-03" is silkscreened on the board.
Panasonic BR2330 battery
Specifications per the store follow...
Dimensions 168 mm (height) x 98 mm (width) x 98 mm (depth)
Weight: 945 g0.945 kg <br />33.33 oz <br />2.084 lbs <br /> (2.08 lbs943.311 g <br />0.943 kg <br />33.271 oz <br />)
Number of users: 50

The FCC test report indicates the firmware used during testing was

Transmit beam forming is supported on 802.11n/ac