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1. OWC

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For Mac Pro 2013, OWC1866D3R9M64, ECC Registered, OWC 64.0GB 4 x 16GB PC3-14900 1866MHz DDR3 ECC-R SDRAM Memory Upgrade Kit

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OWC #ad - Mac pro late 2013 memory upgrade Kit-Matched Set-ECC Registered. Owc memory lifetime Limited Warranty including Advanced Replacement Program. 64. 0gb mac pro late 2013 memory matched set 4 x 16gb pc3-14900 1866mHz DDR3 ECC-R SDRAM Modules. Compatible with mac pro late 2013 december, 1 2. 7ghz 3. 0ghz, 2013 model id: MacPro6, 3. 5ghz, 3. 7ghz. Owc ecc registered memory upgrade Kit-ECC Registered and non-Registered memory may not be mixed.
BrandOWC #ad
ManufacturerOther World Computing #ad
Height3.8 Inches
Length6.2 Inches
Weight0.22 Pounds
Width1.2 Inches
Part Number1866D3R9M64
ModelOWC1866D3R9M64
WarrantyLimited Warranty

2. Micron, Samsung, Infineon, Hynix or Gigaram

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Mac Pro 12-core 2.7GHz Intel Xeon BTO. BY GIGARAM, Mac Pro 8-core 3.0GHz Intel Xeon BTO, Apple 64GB 4x16GB DDR3-1866 PC3-14900 ECC RDIMM Apple Macpro 2013 MODELS MEMORY UPGRADE KIT. Compatible for Apple Mac Pro Quad-core 3.7GHz Intel Xeon E5-1620v2 ME253LL/A, Mac Pro 6-core 3.5GHz Intel Xeon E5-1650v2 MD878LL/A, Mac Pro 6-core 3.5GHz Intel Xeon BTO

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Micron, Samsung, Infineon, Hynix or Gigaram #ad - Mac pro 2013-current Memory Information. 100% compatible Lifetime Warranty. Apple specified thermal Sensor, High-Performance Multi-Channel. Up to 32gb ecc, up to 128gb ecc-registered Memory Currently Supported. Up to 128gb of total memory, 4 Total Memory Slots.
BrandMicron, Samsung, Infineon, Hynix or Gigaram #ad
ManufacturerGigaram #ad
Part Number4KDBH
Model4KDBH

3. Memory Deal

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64GB 4 X 16GB Memory Upgrade Kit for Mac Pro 2013 PC3-14900 DDR3 ECC Registered 1866MHz 240 Pin

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Memory Deal #ad - Apple specified Thermal Sensor. Works in 2012 and 2013 mac pro modules. 2048m x 72, dual rank ecc registered memory module2048M x 72, Dual Rank ECC Registered Memory Module. 64gb of memory 4 x 16gb. Lifetime warranty.
BrandMemory Deal #ad
ManufacturerMemory Deal #ad
Part Number64GD314ERK4MD

4. Timetec

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Timetec Hynix IC 16GB KIT 2x8GB DDR3L 1866MHz PC3-14900 Unbuffered Non-ECC 1.35V CL13 2Rx8 Dual Rank 204 Pin SODIMM Memory RAM Module Upgrade 16GB KIT 2x8GB

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Timetec #ad - Ddr3l 1866mhz pc3-14900 204 pin unbuffered non-ecc 1. 35v cl13 dual rank 2Rx8 based 512x8. Module size: 8gb Package: 2x8GB. For ddr3 laptop / notebook pc, Mini PC, All in one Device. Jedec standard 1. 35v 1. 28v ~ 1. 45v and 1. 5v 1. 425v ~ 1. 575v power supply this is a dual voltage piece and can operate at 1. 35v or 1. 5v. Guaranteed – lifetime warranty from purchase Date Free technical support MON - FRI 9AM-6PM PST.
BrandTimetec #ad
ManufacturerTimetec #ad
Part Number78AP18NUSL2R8-8G.P
ModelNA

5. Patriot Memory

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Patriot 16GB2x8GB Viper III DDR3 1866MHz PC3 15000 CL10 Desktop Memory with Black Mamba Heatsink, PV316G186C0K

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Patriot Memory #ad - Capacity: 16gb 2 x 8GB dual channel kit. Frequency: pc3-15000 1866MHz. Feature over clock: XMP 1. 3. Compatible with the latest DDR3 based Intel and AMD dual channel processors. Voltage: 1. 5v. Timings: 10-11-10-30 Dimm type: 240-pin non-ecc uDIMM.
BrandPatriot Memory #ad
ManufacturerPatriot Memory #ad
Height0.3 Inches
Length5.2 Inches
Weight0.18 Pounds
Width1.63 Inches
Part NumberPV316G186C0K
ModelViper 3

6. Timetec

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Timetec Compatible for Apple 32GB KIT 2x16GB DDR3 1866MHz PC3-14900 Registered ECC RDIMM Server Memory RAM Module Upgrade for Mac Pro Late 2013 A1481 MQGG2LL/A MD878LL/A ME253LL/A 32GB KIT 2x16GB

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Timetec #ad - For apple mac pro late 2013 a1481 mqgg2ll/a md878ll/A ME253LL/A. Jedec standard 1. 5v 1. 425v ~1. 575v power Supply. Guaranteed – 3 months warranty from Purchase Date Free technical support. Module size: 16gb package: 2x16gb a must For Server, Not For Desktop/Laptop. M393b2g70eb0-cma ddr3 1866mhz pc3-14900 240 pin registered ecc 1. 5v cl13 dual rank 2Rx4 based 1024x4.
BrandTimetec #ad
ManufacturerTimetec #ad
Part Number7

7. NEMIXRAM

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128GB 4x32GB DDR3-1866MHz PC3-14900 ECC LRDIMM 4Rx4 1.5V Load Reduced Memory for Server/Workstation

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NEMIXRAM #ad - Ddr3-1866mhz pc3-14900 . Ecc lrdimm load reduced Memory. Lifetime Replacement Warranty. Not for desktop PC/Laptop/Notebook. 128gb 4x32gb.
BrandNEMIXRAM #ad
ManufacturerNEMIX RAM #ad
Height0.5 Inches
Length6 Inches
Weight0.25 Pounds
Width0.5 Inches
Part NumberML14900-344K04-G
ModelML14900-344K04-309

8. Corsair

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Corsair Vengeance Blue 16GB 2x8 GB DDR3 1600MHz PC3 12800 Desktop Memory 1.5V

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Corsair #ad - Vengeance modules are available in 1. 65, 1. 5v, i5 and i7 processors, and 1. 35v configurations for maximum compatibility with all Intel Core i3, as well as the 2nd generation Intel Core Processor Family.

Make sure this fits by entering your model number 16gb 2x 8gb xmp speed: 1600mhz, timings: 9-9-9-24, voltage: 1. 5v spd speed: 1333mhz, timings: 10-10-10-27, voltage: 1. 5v limited lifetime warranty Vengeance Memory is designed specifically for both AMD and Intel DDR3 platforms. Vengeance memory is designed specifically for the latest cpus. Speed: 1600mhz, timing: 10-10-10-27. Spd latency 9-9-9-24, spd speed 1333MHz, SPD voltage 1. 5v. Limited Lifetime warranty.
BrandCorsair #ad
ManufacturerCorsair #ad
Height5.9 Inches
Length5.31 Inches
Weight0.13 Pounds
Width0.59 Inches
Part NumberCMZ16GX3M2A1600C10B
ModelCMZ16GX3M2A1600C10B
WarrantyNO

9. Kingston Technology

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Kingston ValueRAM 24GB Kit 3x8GB 1866MHz DDR3 ECC Reg CL13 DIMM SR x4 Desktop Memory KVR18R13S4K3/24

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Kingston Technology #ad - 240-pin registered DIMM. From the industry leader in PC Memory. 24gb kit 3x8gb of 1866mhz dDR3 Memory. Backed by a lifetime warranty and free technical support.
BrandKingston Technology #ad
ManufacturerKingston Technology #ad
Height0.1 Inches
Length13 Inches
Weight0.04 Pounds
Width4.5 Inches
Part NumberKVR18R13S4K3/24
ModelKVR18R13S4K3/24