Search  for anything...
OWC

OWC 64GB (4 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with 27" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S64S)

  • Based on 1,582 reviews
Condition: New
Checking for the best price...
$136.99 Why this price?
Holiday Deal · 12% off was $154.99

Buy Now, Pay Later

As low as $22.83 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 16 left in stock
Fulfilled by Amazon
Arrives Thursday, Dec 18
Order within 17 hours and 44 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Size: 64GB


Style: 4 x 16GB


Features

  • 4 x 16 GB (64 GB) PC19200 DDR4 2400MHz SO-DIMM Memory, 260-Pin, 1.2 Volts, Non-registered, Non-ECC, Fully compliant with JEDEC specifications, ROHS compliant, warranty safe upgrade; Backed by OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program
  • Memory Upgrade Compatible with 2017 iMac: iMac w/Retina 5K display (27 inch mid 2017) Model ID: iMac18,3 (3.4GHz & 3.5GHz & 3.8GHz Core i5 & 4.2GHz Core i7)
  • Compatible with select PC Laptop, PC Notebook, & All in One Computers

Brand: OWC


Computer Memory Size: 64 GB


RAM Memory Technology: DDR4 2400MHz


Memory Speed: 1200 MHz


Compatible Devices: Desktop


RAM: ‎64 GB DDR4 2400MHz


Memory Speed: ‎2


Brand: ‎OWC


Series: ‎OWC2400DDR4S64S


Item model number: ‎OWC2400DDR4S64S


Item Weight: ‎2.4 ounces


Package Dimensions: ‎6.89 x 4.96 x 0.51 inches


Color: ‎4 x 16GB


Computer Memory Type: ‎DDR4 SDRAM


Voltage: ‎1.2 Volts


Manufacturer: ‎Other World Computing


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎June 8, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Dec 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • iMac now crashing
Size: 32 GB Style: 2 x 16GB
Since I installed 2 more rams of memory in my iMac (Retina 5K, 27-inch, 2017), it now periodically just crashes. I have the error report but it means nothing to me. I assume my issue is related to this installation. Would anyone have any suggestions? panic(cpu 1 caller 0xffffff801d7198aa): [iokit.IODMACommand]: element modified after free (off:24, val:0x0000010000000000, sz:120, ptr:0xffffffa4c5c14e10) 24: 0x0000010000000000 Panicked task 0xffffffa991ae79f0: 7 threads: pid 2319: com.apple.WebKit Backtrace (CPU 1), panicked thread: 0xffffffae57bf2000, Frame : Return Address 0xffffff80c9a3abd0 : 0xffffff801ce81c8d 0xffffff80c9a3ac20 : 0xffffff801cfe1596 0xffffff80c9a3ac60 : 0xffffff801cfd0963 0xffffff80c9a3acb0 : 0xffffff801ce21a70 0xffffff80c9a3acd0 : 0xffffff801ce8205d 0xffffff80c9a3adf0 : 0xffffff801ce81816 0xffffff80c9a3ae50 : 0xffffff801d715163 0xffffff80c9a3af40 : 0xffffff801d7198aa 0xffffff80c9a3b3b0 : 0xffffff801ceeb8a9 0xffffff80c9a3b410 : 0xffffff801d64f497 0xffffff80c9a3b440 : 0xffffff801d64cc51 0xffffff80c9a3b4a0 : 0xffffff7fb5dea857 0xffffff80c9a3b4c0 : 0xffffff7fb5dfc9fb 0xffffff80c9a3b510 : 0xffffff7fb5da92bd 0xffffff80c9a3b530 : 0xffffff7fb5dfa00b 0xffffff80c9a3b550 : 0xffffff7f9dc66f3f 0xffffff80c9a3b5b0 : 0xffffff7f9dc30d31 0xffffff80c9a3b5e0 : 0xffffff7f9dc434ac 0xffffff80c9a3b630 : 0xffffff7f9dc437e5 0xffffff80c9a3b6d0 : 0xffffff7fb5ded368 0xffffff80c9a3b710 : 0xffffff7fb5ded719 0xffffff80c9a3b9b0 : 0xffffff7f9dc34252 0xffffff80c9a3b9e0 : 0xffffff7fb5dee8f1 0xffffff80c9a3ba70 : 0xffffff7fb5dec94b 0xffffff80c9a3bad0 : 0xffffff7fb5dec741 0xffffff80c9a3bb20 : 0xffffff7fb5deb81d 0xffffff80c9a3bb60 : 0xffffff801d683a8c 0xffffff80c9a3bcc0 : 0xffffff801cf872e6 0xffffff80c9a3bdd0 : 0xffffff801ce5c9ab 0xffffff80c9a3be60 : 0xffffff801ce731f9 0xffffff80c9a3bef0 : 0xffffff801cfb35aa 0xffffff80c9a3bfa0 : 0xffffff801ce22256 Kernel Extensions in backtrace: com.apple.iokit.IOAcceleratorFamily2(462.8)[F0D1B5AF-356A-3F86-8829-8F00218602CB]@0xffffff7fb5da6000->0xffffff7fb5e10fff dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[2B96E04B-E2A5-3296-AF14-6A766880A652]@0xffffff801e5a1000->0xffffff801e5c2fff dependency: com.apple.iokit.IOGraphicsFamily(597)[BBEE13AB-2291-37D9-AAE4-9E565E8950A5]@0xffffff7fb5f3f000->0xffffff7fb5f6dfff dependency: com.apple.iokit.IOPCIFamily(2.9)[654ABF9D-EB24-3B64-AB1C-EC2AC8357192]@0xffffff801fa24000->0xffffff801fa4ffff dependency: com.apple.iokit.IOReportFamily(47)[5578189C-7C1D-3158-B357-F8D6A216DCE1]@0xffffff801fa61000->0xffffff801fa63fff dependency: com.apple.iokit.IOSurface(302.14)[F0BF8EFA-AA35-37B5-B3AB-A8BCF5E62024]@0xffffff801fb94000->0xffffff801fbb0fff com.apple.kext.AMDRadeonX4000(4.0.8)[B7BDCB57-0EF9-37E9-B724-29D96491A4FB]@0xffffff7f9dc2b000->0xffffff7f9e07dfff dependency: com.apple.iokit.IOAcceleratorFamily2(462.8)[F0D1B5AF-356A-3F86-8829-8F00218602CB]@0xffffff7fb5da6000->0xffffff7fb5e10fff dependency: com.apple.iokit.IOGraphicsFamily(597)[BBEE13AB-2291-37D9-AAE4-9E565E8950A5]@0xffffff7fb5f3f000->0xffffff7fb5f6dfff dependency: com.apple.iokit.IOPCIFamily(2.9)[654ABF9D-EB24-3B64-AB1C-EC2AC8357192]@0xffffff801fa24000->0xffffff801fa4ffff dependency: com.apple.iokit.IOSurface(302.14)[F0BF8EFA-AA35-37B5-B3AB-A8BCF5E62024]@0xffffff801fb94000->0xffffff801fbb0fff Process name corresponding to current thread (0xffffffae57bf2000): com.apple.WebKit.WebContent Mac OS version: 21F79 Kernel version: Darwin Kernel Version 21.5.0: Tue Apr 26 21:08:22 PDT 2022; root:xnu-8020.121.3~4/RELEASE_X86_64 Kernel UUID: 3C587984-4004-3C76-8ADF-997822977184 KernelCache slide: 0x000000001cc00000 KernelCache base: 0xffffff801ce00000 Kernel slide: 0x000000001cc10000 Kernel text base: 0xffffff801ce10000 __HIB text base: 0xffffff801cd00000 System model name: iMac18,3 (Mac-BE088AF8C5EB4FA2) System shutdown begun: NO Panic diags file available: YES (0x0) Hibernation exit count: 0 System uptime in nanoseconds: 340686258085148 Last Sleep: absolute base_tsc base_nano Uptime : 0x000135da33649f64 Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000 Wake : 0x0000000000000000 0x000000107080ddae 0x0000000000000000 Compressor Info: 5% of compressed pages limit (OK) and 18% of segments limit (OK) with 16 swapfiles and OK swap space Zone info: Zone map: 0xffffff99901f0000 - 0xffffffb9901f0000 . PGZ : 0xffffff99901f0000 - 0xffffff99951f1000 . VM : 0xffffff99951f1000 - 0xffffff9e612bd000 . RO : 0xffffff9e612bd000 - 0xffffff9ffa856000 . GEN0 : 0xffffff9ffa856000 - 0xffffffa4c6922000 . GEN1 : 0xffffffa4c6922000 - 0xffffffa9929ef000 . GEN2 : 0xffffffa9929ef000 - 0xffffffae5eabc000 . GEN3 : 0xffffffae5eabc000 - 0xffffffb32ab89000 . DATA : 0xffffffb32ab89000 - 0xffffffb9901f0000 Metadata: 0xffffff805b6df000 - 0xffffff807b6df000 Bitmaps : 0xffffff807b6df000 - 0xffffff808a6df000 last started kext at 217245416091: @filesystems.smbfs 4.0 (addr 0xffffff7fb6338000, size 483328) last stopped kext at 335917090967: >!AThunderboltEDMSink 5.0.3 (addr 0xffffff7fb5bc7000, size 32768) loaded kexts: @filesystems.smbfs 4.0 >!ATopCaseHIDEventDriver 5450.8 >AudioAUUC 1.70 >!APlatformEnabler 2.7.0d0 >X86PlatformShim 1.0.0 >AGPM 129 >!AUpstreamUserClient 3.6.9 @kext.AMDFramebuffer 4.0.8 @filesystems.autofs 3.0 @kext.AMDRadeonX4000 4.0.8 >!AHDA 340.2 @kext.AMDRadeonServiceManager 4.0.8 >!AGraphicsDevicePolicy 6.5.7 >eficheck 1 >!A!IKBLGraphics 18.0.7 @AGDCPluginDisplayMetrics 6.5.7 >!A!IKBLGraphicsFramebuffer 18.0.7 >pmtelemetry 1 |IOUserEthernet 1.0.1 >usb.!UUserHCI 1 >!AHV 1 >!ADiskImages2 126.100.13 @kext.AMD9500!C 4.0.8 >!A!ISlowAdaptiveClocking 4.0.0 >!ASMCLMU 212 >!A!IPCHPMC 2.0.1 >!AGFXHDA 140.3 >!AThunderboltIP 4.0.3 >!AMCCSControl 1.16 >!AFileSystemDriver 3.0.1 @filesystems.tmpfs 1 @filesystems.lifs 1 @filesystems.hfs.kext 583.100.10 @BootCache 40 @!AFSCompression.!AFSCompressionTypeZlib 1.0.0 @!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1 @filesystems.apfs 1934.121.2 >AirPort.BrcmNIC 1400.1.1 >!ASDXC 3.2.1 |!ABCM5701Ethernet 11.0.0 >!AAHCIPort 351.100.4 @private.KextAudit 1.0 >!AACPIButtons 6.1 >!ARTC 2.0.1 >!ASMBIOS 2.1 >!AACPIEC 6.1 >!AAPIC 1.7 @!ASystemPolicy 2.0.0 @nke.applicationfirewall 402 |IOKitRegistryCompatibility 1 |EndpointSecurity 1 @Dont_Steal_Mac_OS_X 7.0.0 @kec.!AEncryptedArchive 1 >driverkit.serial 6.0.0 |IOSerial!F 11 >!AHIDKeyboard 228.2 >!AMultitouchDriver 5450.14 >!AInputDeviceSupport 5450.4 >!AHS!BDriver 5450.8 >IO!BHIDDriver 9.0.0 @kext.triggers 1.0 @kext.AMDRadeonX4200HWLibs 1.0 >DspFuncLib 340.2 @kext.OSvKernDSPLib 529 @kext.AMDRadeonX4000HWServices 4.0.8 >!AGraphicsControl 6.5.7 >!ASMBusPCI 1.0.14d1 |IOAccelerator!F2 462.8 |IO!BSerialManager 9.0.0 |IO!BPacketLogger 9.0.0 |IO!BHost!CUSBTransport 9.0.0 |IO!BHost!CUARTTransport 9.0.0 |IO!BHost!CTransport 9.0.0 >IO!BHost!CPCIeTransport 9.0.0 |IOAVB!F 1040.6 @plugin.IOgPTPPlugin 1040.3 |IOEthernetAVB!C 1.1.0 |CSR!BHost!CUSBTransport 9.0.0 |Broadcom!BHost!CUSBTransport 9.0.0 |Broadcom!B20703USBTransport 9.0.0 >!AIPAppender 1.0 @kext.AMDSupport 4.0.8 @!AGPUWrangler 6.5.7 |IOSlowAdaptiveClocking!F 1.0.0 @!AGraphicsDeviceControl 6.5.7 >X86PlatformPlugin 1.0.0 >IOPlatformPlugin!F 6.0.0d8 >!AHDA!C 340.2 |IOHDA!F 340.2 |IONDRVSupport 597 |IOAudio!F 340.2 @vecLib.kext 1.2.0 >!AThunderboltDPOutAdapter 8.5.1 |IOGraphics!F 597 >!ASMBus!C 1.0.18d1 |IOAHCIBlock!S 333.100.3 >usb.IOUSBHostHIDDevice 1.2 >usb.cdc 5.0.0 >usb.networking 5.0.0 >usb.!UHostCompositeDevice 1.2 >!AThunderboltPCIUpAdapter 4.1.1 >!AThunderboltPCIDownAdapter 4.1.1 >!AThunderboltDPInAdapter 8.5.1 >!AThunderboltDPAdapter!F 8.5.1 >!AHPM 3.4.4 >!A!ILpssI2C!C 3.0.60 >!A!ILpssDmac 3.0.60 >!ABSDKextStarter 3 |IOSurface 302.14 @filesystems.hfs.encodings.kext 1 >!AXsanScheme 3 >!AThunderboltNHI 7.2.81 |IOThunderbolt!F 9.3.3 |IO80211!FLegacy 1200.12.2b1 |IOSkywalk!F 1.0 >corecapture 1.0.4 |IONVMe!F 2.1.0 >mDNSOffloadUserClient 1.0.1b8 >!A!ILpssI2C 3.0.60 >!A!ILpssGspi 3.0.60 >usb.!UXHCIPCI 1.2 >usb.!UXHCI 1.2 |IOAHCI!F 297 >usb.!UHostPacketFilter 1.0 |IOUSB!F 900.4.2 >!AEFINVRAM 2.1 >!AEFIRuntime 2.1 |IOSMBus!F 1.1 |IOHID!F 2.0.0 |IOTimeSync!F 1040.3 |IONetworking!F 3.4 >DiskImages 493.0.0 |IO!B!F 9.0.0 |IOReport!F 47 $quarantine 4 $sandbox 300.0 @kext.!AMatch 1.0.0d1 |CoreAnalytics!F 1 >!ASSE 1.0 >!AKeyStore 2 >!UTDM 533.120.2 |IOUSBMass!SDriver 210.120.3 |IOSCSIBlockCommandsDevice 456.121.3 |IO!S!F 2.1 |IOSCSIArchitectureModel!F 456.121.3 >!AMobileFileIntegrity 1.0.5 $!AImage4 4.2.0 @kext.CoreTrust 1 >!AFDEKeyStore 28.30 >!AEffaceable!S 1.0 >!ACredentialManager 1.0 >KernelRelayHost 1 |IOUSBHost!F 1.2 >!UHostMergeProperties 1.2 >usb.!UCommon 1.0 >!ABusPower!C 1.0 >!ASEPManager 1.0.1 >IOSlaveProcessor 1 >!AACPIPlatform 6.1 >!ASMC 3.1.9 |IOPCI!F 2.9 |IOACPI!F 1.4 >watchdog 1 @kec.pthread 1 @kec.Libm 1 @kec.corecrypto 12.0 ... show more
Reviewed in the United States on July 19, 2022 by MM
    • Good Memory choice
Size: 16GB Style: 1 x 16GB
Memory ordered works as expected on my computer
Reviewed in the United States on April 28, 2023 by Juan C Ruiz
    • No issues in my NUC
Size: 32GB Style: 1 x 32GB
Works well easy plug and play!
Reviewed in the United States on April 29, 2023 by ManCave
    • Seems to work fine
Size: 16GB Style: 2 x 8GB
Easy to install and seems to work fine.
Reviewed in the United States on April 26, 2023 by Peggy
    • They work fine
Size: 8 GB Style: 2 x 4GB
They they work fine I'm happy with them I recommend them
Reviewed in the United States on April 23, 2023 by SMZ
    • Just right
Size: 16GB Style: 1 x 16GB
Worked just like advertised.
Reviewed in the United States on April 25, 2023 by Larryw
    • Easy to install and worked instantly
Size: 64GB Style: 4 x 16GB
Easy to install and worked great instantly. Took longer to power off my Mac than it did to install it.iMac (Retina 5K, 27-inch, 2017 4.2 GHz Quad-Core Intel Core i7
Reviewed in the United States on March 24, 2023 by james
    • I don’t do hardware
Size: 32 GB Style: 2 x 16GB
On my Mac, this was simple to install. Apple but a bay on the back to access the memory. I spent more time worrying about it then actually doing it.
Reviewed in the United States on March 23, 2023 by Retired in Texas

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...