16GB OWC 2666Mhz PC4-21300 DDR4 SO-DIMM Laptop Memory Kit (2 x 8GB) by OWC
- 9 reviews
- Item Number: 15844
- Part Number: OWC2666DDR4S16P
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Key Features
- Dual 16GB DDR4 memory module
- PC4-21300 memory standard, 2666MHz speed
- Low voltage 1.20V ensures lower power consumption
- Low Noise 8-Layer PCB
- Backed by a lifetime limited manufacturers warranty
See product description
Capacity
- 16GB (2 x 8GB)
- 32GB (2 x 16GB)
- 2400 MHz
- 2666MHz
- Dual Kit
- Single
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Details
This OWC memory kit is designed for Mac mini (Late 2018) and PCs which utilize PC4-21300 SO-DIMM. The 16GB DDR4 2666MHz SODIMM Memory Upgrade Kit (2 x 8GB) from OWC features a total capacity of 16GB, which is made up of two 8GB modules.
16GB OWC is a non-ECC module that features a clock speed of 2666MHz. It has 260-pin DIMM form factor and is single-ranked. Plus, the memory module operates using 1.2V.
*The memory kit is also backed by OWC Lifetime Advance Replacement Limited Warranty.
Specifications
| CAPACITY | 16GB (2 x 8GB) |
| MEMORY SPEED | 2666MHz |
| VOLTAGE | 1.2V |
| SINGLE MODULE / DUAL KIT | Dual Kit |
| PACKAGING | Retail packaging |
| WARRANTY | Lifetime manufacturers limited warranty |
User Reviews
- 7 reviews
- 2 reviews
Joel Jose
working well
August 9th 2025 Verified user
Working well
Review of 16GB OWC PC4-19200 2400MHz DDR4 SO-DIMM CL17 Memory Module
James O'Grady
Top notch and service
July 22nd 2024 Verified user
As always MemoryC deliver an excellent product at an affordable price and in the usual speedy time frame. Super service, thanks a million.
Review of 32GB OWC PC4-19200 2400MHz DDR4 SO-DIMM CL17 Memory Kit (2 x 16GB)
Keegan Crankshaw
Great Value, plug and play
July 5th 2024 Verified user
Much better priced than other options at the time. Speedy delivery, too.
Review of 32GB OWC PC4-21300 2666MHz DDR4 SO-DIMM Single Memory Module
Richard Plaxton
Not "dual-ranked"
March 31st 2024 Verified user
Bought this particular module for a Synology DS224+ (unsupported upgrade) on the basis that it was in stock and described as dual-ranked.
Unfortunately after installing into the NAS, the machine would not boot. I double-checked that the module was inserted correctly and left the NAS on for an extended period, but it would still not boot.
Probing further, I then tested it in an Intel NUC7I3BNH and it was recognised and worked fine.
The output from dmidecode --type 17 was:
Handle 0x0037, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0035
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16 GB
Form Factor: SODIMM
Set: None
Locator: ChannelB-DIMM0
Bank Locator: BANK 2
Type: DDR4
Type Detail: Synchronous
Speed: 2667 MT/s
Manufacturer: 0000
Serial Number: 00163349
Asset Tag: 9876543210
Part Number:
Rank: 1
Configured Memory Speed: 2133 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
This output shows the RAM as single rank.
I subsequently bought a Kingston KVR26S19D8/16 which is dual-ranked (2R) and is recognised and working in the Synology.
Unfortunately after installing into the NAS, the machine would not boot. I double-checked that the module was inserted correctly and left the NAS on for an extended period, but it would still not boot.
Probing further, I then tested it in an Intel NUC7I3BNH and it was recognised and worked fine.
The output from dmidecode --type 17 was:
Handle 0x0037, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0035
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16 GB
Form Factor: SODIMM
Set: None
Locator: ChannelB-DIMM0
Bank Locator: BANK 2
Type: DDR4
Type Detail: Synchronous
Speed: 2667 MT/s
Manufacturer: 0000
Serial Number: 00163349
Asset Tag: 9876543210
Part Number:
Rank: 1
Configured Memory Speed: 2133 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
This output shows the RAM as single rank.
I subsequently bought a Kingston KVR26S19D8/16 which is dual-ranked (2R) and is recognised and working in the Synology.
Review of 16GB OWC PC4-21300 2666MHz DDR4 SO-DIMM Single Memory Module
Warren Hodgkinson
Good
December 19th 2022 Verified user
Good product
Review of 32GB OWC 2666Mhz PC4-21300 DDR4 SO-DIMM Laptop Memory Kit (2 x 16GB)
Jim Owers
A very happy customer
June 23rd 2022 Verified user
Ordered my product and received withing 36 hours by courier. Excellent company to deal with. No dramas and no hassle.
Review of 32GB OWC 2666Mhz PC4-21300 DDR4 SO-DIMM Laptop Memory Kit (2 x 16GB)
Martin Kujovic
Great
February 17th 2022 Verified user
Products is great and service too!
Review of 32GB OWC 2666Mhz PC4-21300 DDR4 SO-DIMM Laptop Memory Kit (2 x 16GB)
Martien Jacobs
Excellent product
June 25th 2019 Verified user
Order, pay and receive within a few days. Fast, faster and also my computer. Thanks
Review of 32GB OWC PC4-19200 2400MHz DDR4 SO-DIMM CL17 Memory Kit (2 x 16GB)
Hugh Galt
Great value and quality
October 29th 2018 Verified user
As always, Memoryc extremely helpful with advice and speedy delivery. Units simple to install and way less expensive than Apple parts. Excellent.
Review of 32GB OWC PC4-19200 2400MHz DDR4 SO-DIMM CL17 Memory Kit (2 x 16GB)
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