Amazon.com: Digi-Chip HIGH Speed 32GB UHS-1 Class 10 Micro-SD Memory Card for Microsoft Lumia 550, Lumia 650, Lumia 950, Lumia 950XL : Electronics
Microsoft Lumia 550 is now available for purchase in select market at $139 - Nokiapoweruser
Microsoft Lumia 550 RM-1127 8GB (GSM Only, No CDMA) Factory Unlocked 4G/LTE - International Version No Warranty (Black) : Cell Phones & Accessories - Amazon.com
Lumia 550: Inserting Sim & SD Card, Keys & Parts support videos
Microsoft Lumia 550 - Specifications
Microsoft Lumia 550 review: Low-Five: Conclusion
Amazon.com: Microsoft Lumia 550 RM-1127 8GB (GSM Only, No CDMA) Factory Unlocked 4G/LTE - International Version No Warranty (Black) : Cell Phones & Accessories
Microsoft Lumia 550, 750, and 850 specifications revealed, uninspiring hardware expected | TelecomTalk
Nokia Microsoft Lumia 550 Windows Smart Phone Unlocked 8GB Green SIM FREE UK | eBay