HP 550 Laptop Hard Drive Replacement/Upgrade SSD & RAM - YouTube
HP 550 Notebook RAM memory replacement - iFixit Repair Guide
Memory RAM | 8GB Kit (2x4GB) - HP - HPE Essential HP 550 (Intel GME965) - - 800MHz
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2GB [1x2GB] Memory RAM Upgrade for the Compaq HP 550 Laptops | eBay
OFFTEK 128MB Replacement Memory RAM Upgrade for HP-Compaq OmniBook XE3 Celeron 550/600/650/700 (F23xxx) (PC100) Laptop Memory at Amazon.com
Adamanta 8GB (1x8GB) Memory Upgrade for HP Pavilion Desktop 550-a114 DDR3L 1600Mhz PC3L-12800 UDIMM 2Rx8 CL11 1.35v RAM at Amazon.com
Memory RAM Upgrade for HP Pavilion Desktop 550-254na 4GB/8GB DDR3 DIMM | eBay
1GB Team High Performance Memory RAM Upgrade Single Stick For HP - Compaq Business Notebook 550 (Intel Celeron M) Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
Adamanta 8GB (1x8GB) Memory Upgrade for HP Pavilion Desktop 550-a114 DDR3L 1600Mhz PC3L-12800 UDIMM 2Rx8 CL11 1.35v RAM at Amazon.com
Memory RAM | 2GB Kit (2x1GB) - HP - HPE Essential HP 550 (Intel GLE960) - (OEM-# 2 x (EM994AA, 406727-001)) - 667MHz