--- product_id: 115533816 title: "Crucial RAM CT4G3S1339M 4 GB DDR3 1333 MHz CL9 Memory for Mac , Green" brand: "micron" price: "¥8026" currency: JPY in_stock: true reviews_count: 13 category: "Micron" url: https://www.desertcart.jp/products/115533816-crucial-ram-ct4g3s1339m-4-gb-ddr3-1333-mhz-cl9-memory store_origin: JP region: Japan --- # 1333 MHz DDR3 speed 204-pin SO-DIMM form factor Micron-tested reliability Crucial RAM CT4G3S1339M 4 GB DDR3 1333 MHz CL9 Memory for Mac , Green **Brand:** micron **Price:** ¥8026 **Availability:** ✅ In Stock ## Summary > 🚀 Upgrade your Mac’s memory, upgrade your productivity! ## Quick Answers - **What is this?** Crucial RAM CT4G3S1339M 4 GB DDR3 1333 MHz CL9 Memory for Mac , Green by micron - **How much does it cost?** ¥8026 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/115533816-crucial-ram-ct4g3s1339m-4-gb-ddr3-1333-mhz-cl9-memory) ## Best For - micron enthusiasts ## Why This Product - Trusted micron brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Simplicity:** No tech skills needed—easy installation with step-by-step guides to get you up and running fast. - • **Micron Quality Assurance:** Backed by 42 years of memory expertise and rigorous testing for voltage, temperature, and signal integrity. - • **Seamless Mac Compatibility:** Engineered specifically for Mac systems to ensure flawless upgrades without guesswork. - • **Energy Efficient Performance:** Operates at low voltage (1.35V) to keep your Mac cool and power-efficient during heavy workloads. - • **Boost Your Mac’s Multitasking:** 4GB DDR3 memory at 1333 MHz accelerates app responsiveness and smooth multitasking. ## Overview The Crucial CT4G3S1339M is a 4GB DDR3 1333 MHz SO-DIMM memory module designed specifically for Mac systems. It offers reliable, high-speed performance with Micron’s 42 years of expertise ensuring compatibility and durability. Easy to install and energy efficient, this module is the perfect upgrade to boost your Mac’s multitasking and responsiveness. ## Description From the manufacturer Compatible with Mac systems Take the guesswork out of upgrading your Mac with Crucial memory for Mac systems. Since Apple computers often have very specific memory requirements, including particular component densities, speeds, and SPD programming specifications, it’s important to use memory that’s engineered for your Mac. With more than a decade of experience manufacturing and developing memory for all types of Apple computers, Crucial makes adding memory the easiest way to upgrade your Mac. Reliability for Mac systems When you use your Mac system, you expect intuitive, dependable performance. Expect the same out of your memory. Every Crucial module that leaves our doors has been tested at the component level for voltage and temperature resistances, signal integrity, and software compatibility. Speed for Mac systems A memory upgrade is the fastest, easiest, and most affordable way to get more performance out of your Mac system. Upgrade your Mac with Crucial memory modules and maximize your creativity with top speed and high density DDR3 and DDR4 memory modules Support for Mac systems Micron quality – A higher level of reliability As a brand of Micron, one of the largest memory manufacturers in the world, Crucial memory for Mac systems is backed by the same quality and innovation that has produced some of the world’s most advanced memory and storage technologies. With a product portfolio that includes upgrades for more than 100,000 systems, we’ve got one specifically designed for your Mac system. Review: Excellent product - The set up was really straight forward and is working very well. There is no difference (speedwise) in the original 4GB module and this one. I am using it on a 2011 IMac 27" and is working great. Review: Memory upgrade for Apple iMac - I bought three of these memory sticks as the supplier only had three in stock. I used them plus one of the original 2GB memory sticks to give me 14GB in my iMac 27". I watched some videos on YouTube before I carried out the upgrade but the procedure was simplicity itself and only took a few minutes. Now, I regularly have between 8 to 10GB free when running most applications and even when running Windows XP under Parallels, there is no reduction in performance. N.B. If you buy two of these sticks to give 8GB in your iMac, be aware that they must be inserted in the top two slots as you look at the memory port with the iMac lying on its screen. If in doubt, consult the upgrade instructions on the Apple web site. ## Features - Improve your system's responsiveness, run apps faster and multitask with ease - Install with ease; no computer skills required. How-to guides available at Crucial - Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool - Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise - ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 204-pin, PC Speed = PC3-10600, Voltage = 1.35 V/1.5 V, Rank and Configuration = 2R x 8 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008LTBKKQ | | Best Sellers Rank | 154,061 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1,116 in Computer Memory | | Box Contents | Ram | | Brand | Micron | | Brand Name | Micron | | Column Address Strobe Latency | CL9 | | Compatible Devices | Laptop | | Compatible devices | Laptop | | Computer memory size | 4 GB | | Country of Origin | China | | Customer Reviews | 4.4 out of 5 stars 155 Reviews | | Data Transfer Rate | 1333 MHz | | Form Factor | SO-DIMM | | Global Trade Identification Number | 00649528762023, 00649528762313 | | Item Type Name | Memory for MAC | | Item Weight | 0.01 Kilograms | | Manufacturer | Micron | | Manufacturer Part Number | CT4G3S1339M | | Memory Form Factor | SODIMM | | Memory Generation | DDR3L | | Memory Speed | 1333 MHz | | Memory speed | 1333 MHz | | Model Name | Crucial DDR3L 1333 MT/s for Mac | | Model Number | CT4G3S1339M | | Number of Items | 1 | | Number of Packs | 1 | | Number of Pins | 204 | | Product Features | Mac compatibility^Operating temperature range:0 - 85 °C | | Product Warranty | 2 years | | RAM Memory Technology | DDR3 | | RAM Size | 4 GB | | RAM memory technology | DDR3 | | Special feature | Mac compatibility^Operating temperature range:0 - 85 °C | | UPC | 088021289833 649528762313 649528762023 088020691132 001910720613 151903574201 | | Unit Count | 1.0 count | | Voltage | 1.35 Volts | ## Product Details - **Brand:** Micron - **Compatible devices:** Notebook^Mac compatibility - **Computer memory size:** 4 GB - **Memory speed:** 1333 MHz - **RAM memory technology:** DDR3 ## Images ![Crucial RAM CT4G3S1339M 4 GB DDR3 1333 MHz CL9 Memory for Mac , Green - Image 1](https://m.media-amazon.com/images/I/61wtDnL7-FL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent product *by N***E on 1 May 2012* The set up was really straight forward and is working very well. There is no difference (speedwise) in the original 4GB module and this one. I am using it on a 2011 IMac 27" and is working great. ### ⭐⭐⭐⭐⭐ Memory upgrade for Apple iMac *by M***S on 9 January 2013* I bought three of these memory sticks as the supplier only had three in stock. I used them plus one of the original 2GB memory sticks to give me 14GB in my iMac 27". I watched some videos on YouTube before I carried out the upgrade but the procedure was simplicity itself and only took a few minutes. Now, I regularly have between 8 to 10GB free when running most applications and even when running Windows XP under Parallels, there is no reduction in performance. N.B. If you buy two of these sticks to give 8GB in your iMac, be aware that they must be inserted in the top two slots as you look at the memory port with the iMac lying on its screen. If in doubt, consult the upgrade instructions on the Apple web site. ### ⭐⭐⭐⭐⭐ Quick delivery no problems. *by D***O on 4 September 2011* Memory works fine after being installed in my 27" Imac I3 mid 2010 model. Sticks are individually packaged and is easy to install. System recognised it immediately upon startup. ## Frequently Bought Together - Crucial Technology 4GB, 204-pin SODIMM, DDR3 PC3-10600, - Crucial BX500 1TB 3D NAND SATA 2.5-Inch Internal SSD, up to 540MB/s - CT1000BX500SSD1, Solid State Drive - Crucial MX500 1TB 3D NAND SATA 2.5 Inch Internal SSD, up to 560MB/s - CT1000MX500SSD1 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/115533816-crucial-ram-ct4g3s1339m-4-gb-ddr3-1333-mhz-cl9-memory](https://www.desertcart.jp/products/115533816-crucial-ram-ct4g3s1339m-4-gb-ddr3-1333-mhz-cl9-memory) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-11*