OWC - 16GB OWC Memory Upgrade Kit - 4 x 4GB PC8500 DDR3 1066MHz SO-DIMMs for all Apple iMac 21.5" and 27" (October/2009) models

£117.03 £7.31/GB

54% dearer per GB than the average 16GB DDR3 kit we track.

▼ 18% below 90-day median Mac DDR3 Non-ECC Unbuffered

★ 4.8/5 · 97 reviews on Amazon

Buy on Amazon.co.uk

Specification

Price history

Typical price (median) 90-day £142.90 12-month £127.65 12-month low £41.98 All-time low £36.80 (2024-11-07)

Modest Today’s price is 8% below this kit’s typical price for the past year, and it has been cheaper than this for 37% of that year (last on 29 Aug 2026). Why medians, not averages ›

30-day avg £113.0990-day avg £169.09180-day avg £186.39 (averages are pulled up by price spikes; the medians above are the better guide)

Cheaper per GB in the same spec

Same generation, capacity and form factor as this kit, ranked by £/GB. See all ›

	£/GB	Price	Capacity	Manufacturer	For	Type	Form Factor	ECC / Buffered	Description
	£1.81best £/GB	£28.99	16GB (2x8GB)	motoeagle	Mac	DDR3	SO-DIMM 1333MHz	Unbuffered	DDR3 1333 SODIMM 16GB Kit (8GBx2) PC3 10600S 8GB DDR3L 1333MHz 2Rx8 PC3-10600 204-pin 1.35V/1.5V Laptop MemoryBuy📈★★★★☆33
	£2.00	£31.99	16GB (2x8GB)	motoeagle	Mac	DDR3	SO-DIMM 1333MHz	Unbuffered	DDR3 1333 SODIMM 16GB Kit (8GBx2) PC3 10600S 8GB DDR3L 1333MHz 2Rx8 PC3-10600 204-pin 1.35V/1.5V Laptop MemoryBuy📈★★★★½193
	£2.06	£32.99	16GB (2x8GB)	Rasalas	Mac	DDR3	SO-DIMM 1600MHz	Non-ECCUnbuffered	Rasalas DDR3 16GB Kit (2x8GB) DDR3 1600MHz PC3L-12800 16GB Non ECC Unbuffered 1.35V CL11 2Rx8 Dual Rank SODIMM Laptop Memory RamBuy📈★★★★½1,148
	£2.06	£32.99	16GB (2x8GB)	motoeagle	Mac	DDR3	SO-DIMM 1600MHz	Non-ECCUnbuffered	Motoeagle DDR3L-1600 SODIMM 16GB Kit (2x8GB) PC3L-12800S 8GB 2Rx8 PC3 12800S DDR3 1600MHz RAM 1.35V/1.5V CL11 204-Pin Non-ECC Unbuffered Laptop MemoryBuy📈★★★★☆121
	£2.12	£33.99▼ 6%	16GB (2x8GB)	Timetec	Laptop	DDR3	SO-DIMM 1600MHz	Non-ECCUnbuffered	Timetec Premium 16GB KIT(2x8GB) DDR3L/DDR3 1600MHz(DDR3L-1600) PC3L-12800 Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook RAMBuy📈★★★★½108
	£2.37	£37.99	16GB (2x8GB)	Timetec	Mac	DDR3	SO-DIMM 1867MHz	Non-ECCUnbuffered	Timetec 16GB KIT(2x8GB) Compatible for Apple Late 2015 iMac (27-inch w/Retina 5K Display) DDR3L 1867MHz / 1866MHz PC3L-14900 2Rx8 CL13 1.35V 204 Pin SODIMM Memory Module MAC RAM Upgrade for iMac 17,1Buy📈★★★★½674

About this kit

• OWC Memory Upgrade Kit: 16.0GB (4x 4GB) PC8500 DDR3 Non ECC 1066 MHz 204 pin SO-DIMM
• High Quality 16.0 GB (4x 4GB) OWC Brand PC8500 DDR3 Non ECC 1066 MHz 204 pin SO-DIMM Memory upgrade kit Compatible with iMac 21.5" and 2" (October/2009) Models
• Compatible with iMac 21.5" and 27" (October/2009) Models, Compatible with PC desktops with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B
• Compatible with Mac systems: iMac 27-inch (Late 2009 Model ID: iMac10,1 and iMac11,1) iMac 21.5-inch (Late 2009 Model ID: iMac10,1)
• International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

As an Amazon Associate we earn from qualifying purchases. Price and availability shown are as of the last update and may change on Amazon.