Apple BCM94321MC

Overview
"BCM94321MC", "S/N", and "REV 5" is silkscreened on the front of the card.
 * "200-115562-0000P2", "BROADCOM CORP", and "(C) 2006" is silkscreened on the back of the card.

Model Number: BCM94321MC. Compatibility:
 * Apple MacBook @ 2.1 / 2.4GHz Core 2 Duo
 * Apple MacBook @ 2.0 (Santa Rosa) / 2.2 GHz Core 2 Duo
 * Apple MacBook Pro 15" @ 2.4 / 2.6GHz (Penryn) Core 2 Duo
 * Apple MacBook Pro 17" @ 2.5GHz (Penryn) Core 2 Duo

Pictures
User Images 

lspci -nnv dump
05:00.0 Network controller [0280]: Broadcom Corporation BCM4321 802.11a/b/g/n [14e4:4328] (rev 05) Subsystem: Apple Inc. AirPort Extreme [106b:008c] Physical Slot: 1 Flags: bus master, fast devsel, latency 0, IRQ 19 Memory at f1d00000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [58] Vendor Specific Information: Len=78 Capabilities: [e8] MSI: Enable-Count=1/1 Maskable-64bit Capabilities: [d0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel Capabilities: [160] Device Serial Number c8-35-c2-ff-ff-bb-00-1e Capabilities: [16c] Power Budgeting <?> Kernel driver in use: b43-pci-bridge

ssb + b43 info dump
ssb: Found chip with id 0x4321, rev 0x05 and package 0x00 ssb: Core 0 found: ChipCommon (cc 0x800, rev 0x13, vendor 0x4243) ssb: Core 1 found: IEEE 802.11 (cc 0x812, rev 0x0C, vendor 0x4243) ssb: Core 2 found: PCI-E (cc 0x820, rev 0x08, vendor 0x4243) ssb: Core 3 found: PCI (cc 0x804, rev 0x0D, vendor 0x4243) ssb: Core 4 found: USB 1.1 Host (cc 0x817, rev 0x04, vendor 0x4243) ssb: Sonics Silicon Backplane found on PCI device 0000:05:00.0 b43-phy25: Broadcom 4321 WLAN found (core revision 12) b43-phy25: Found PHY: Analog 5, Type 4 (N), Revision 2