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Speed
DDR5
DDR5 9600 (PC5 76800)
DDR5 8800 (PC5 70400)
DDR5 8400 (PC5 67200)
DDR5 8200 (PC5 65600)
DDR5 8000 (PC5 64000)
DDR5 7800 (PC5 62400)
DDR5 7600 (PC5 60800)
DDR5 7200 (PC5 57600)
DDR5 7000 (PC5 56000)
DDR5 6800 (PC5 54400)
DDR5 6600 (PC5 52800)
DDR5 6400 (PC5 51200)
DDR5 6200 (PC5 49600)
DDR5 6000 (PC5 48000)
DDR5 5800 (PC5 46400)
DDR5 5600 (PC5 44800)
DDR5 5200 (PC5 41600)
DDR5 4800 (PC5 38400)
DDR4
DDR4 4800 (PC4-38400)
DDR4 4600 (PC4 36800)
DDR4 4400 (PC4 35200)
DDR4 4266 (PC4 34100)
DDR4 4000 (PC4 32000)
DDR4 3600 (PC4 28800)
DDR4 3466 (PC4 27700)
DDR4 3333 (PC4 26600)
DDR4 3200 (PC4 25600)
DDR4 3000 (PC4 24000)
DDR4 2933 (PC4 23466)
DDR4 2933 (PC4 23400)
DDR4 2800 (PC4 22400)
DDR4 2666 (PC4 21333)
DDR4 2666 (PC4 21330)
DDR4 2666 (PC4 21300)
DDR4 2400 (PC4 19200)
DDR4 2133 (PC4 17000)
DDR3
DDR3 3200 (PC3 25600)
DDR3 2400 (PC3 19200)
DDR3 2133 (PC3 17000)
DDR3 1866 (PC3 14900)
DDR3L 1866 (PC3L 14900)
DDR3 1600 (PC3 12800)
DDR3L 1600 (PC3L 12800)
DDR3 1333 (PC3 10666)
DDR3 1333 (PC3 10600)
DDR3L 1333 (PC3L 10600)
DDR3 1066 (PC3 8500)
DDR2
DDR2 1066 (PC2 8500)
DDR2 800 (PC2 6400)
DDR2 667 (PC2 5300)
DDR2 533 (PC2 4300)
DDR2 533 (PC2 4200)
DDR2 400 (PC2 3200)
DDR
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DDR 333 (PC 2700)
DDR 266 (PC 2100)
PC
PC 100
PC 133
Capacity
64GB per Module
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4GB per Module
4GB
8GB (2 x 4GB)
16GB (4 x 4GB)
Type
288-Pin DDR4 SDRAM
CAS Latency
CAS Latency 21-30
CL22
CAS Latency 11-20
CL15
CL16
CL17
CL19
CAS Latency 1-5
CL1.5
Multi-channel Kit
Dual Channel Kit
Quad Channel Kit
Recommend Use
AMD & Intel Compatible
AMD 300 Series
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Intel Z270
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Intel Z390
Intel Z490
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Intel Z790
High Performance or Gaming Memory
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Voltage
1.20V
1.35V
ECC
Yes
No
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Color
Black
Black PCB
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Red
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Green
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Gray
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Black / Red
N/A
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Intel XMP 2.0
LED Color
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None
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Availability
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Condition
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Total Capacity
4 GB
8 GB
16 GB
32 GB
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Speed:
DDR4 2666 (PC4 21300)
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OWC 32GB (4x8GB) DDR4 2666MHz PC4-21300 CL19 1RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PC
CAS Latency:
CL19
Voltage:
1.2V
Multi-channel Kit:
Dual Channel Kit
Recommend Use:
Desktops
Model #:
OWC2U6D41R8032S
$
277
.16
–
Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
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(12)
CORSAIR Vengeance LPX 32GB (4 x 8GB) DDR4 2666 (PC4 21300) C15 Memory Kit - Black Model CMK32GX4M4A2666C15
Voltage:
1.20V
Timing:
15-17-17-35
Buffered/Registered:
Unbuffered
Heat Spreader:
Anodized Aluminum
Model #:
CMK32GX4M4A2666C15
$
289
.00
–
More options from $99.00 - $289.00
Free Shipping
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OWC 16GB Replacement for QNAP RAM-16GDR4ECT0-UD-2666 RAM-16GDR4ECP0-UD-2666 16GB DDR4 2666 PC4-21300 CL19 2Rx8 288-pin 1.2V ECC Unbuffered UDIMM Memory RAM Module Upgrade
CAS Latency:
CL19
Voltage:
1.2V
Recommend Use:
Workstations, Servers, and NAS Systems
ECC:
Yes
Model #:
OWC2E6D42R816GB-B580-SF
$
159
.99
–
Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
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OWC 8GB RAM Compatible with Synology D4EC-2666-8G, D4EU01-8G | DDR4 2666MHz PC4-21300 ECC Unbuffered UDIMM 1Rx8 1.2V Memory Upgrade for NAS, RackStation, FlashStation, & NVR DVA
CAS Latency:
CL19
Voltage:
1.2V
Recommend Use:
Workstations, Servers, and NAS Systems
ECC:
Yes
Model #:
OWC2E6D41R808GB-ZAR-SF
$
85
.99
–
Available Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
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OWC 64GB (4x16GB) DDR4 2666MHz PC4-21300 CL19 2RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PC
CAS Latency:
CL19
Voltage:
1.2V
Multi-channel Kit:
Dual Channel Kit
Recommend Use:
Desktops
Model #:
OWC2U6D42R8064S
$
540
.70
–
Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
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OWC 64GB (8x8GB) DDR4 2666MHz PC4-21300 CL19 1RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PC
CAS Latency:
CL19
Voltage:
1.2V
Multi-channel Kit:
Dual Channel Kit
Recommend Use:
Desktops
Model #:
OWC2U6D41R8064K
$
554
.32
–
Direct from OWC
This product is sold direct from the manufacturer.
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(22)
HyperX FURY 16GB DDR4 2666 (PC4 21300) Desktop Memory Model HX426C16FB3/16
CAS Latency:
CL16
Voltage:
1.20V
Timing:
16-18-18
Heat Spreader:
Yes
Model #:
HX426C16FB3/16
$
169
.00
–
More options from $52.99 - $169.00
Free Shipping
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OWC 128GB (8x16GB) DDR4 2666MHz PC4-21300 CL19 2RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PC
CAS Latency:
CL19
Voltage:
1.2V
Multi-channel Kit:
Dual Channel Kit
Recommend Use:
Desktops
Model #:
OWC2U6D42R8128K
$
1,081
.39
–
Direct from OWC
This product is sold direct from the manufacturer.
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OWC 32GB Replacement for Micron MTA18ADF4G72AZ-2G6 - DDR4 2666 PC4-21300 CL19 2Rx8 VLP 288-pin 1.2V ECC Unbuffered DIMM Memory RAM Module Upgrade
CAS Latency:
CL19
Voltage:
1.2V
Brand:
OWC
Capacity:
32GB
Model #:
OWC2E6V42R832GB-C286-SF
$
379
.99
–
Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
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OWC 16GB Replacement for Hynix HMA82GU8CJR8N-VK Micron MTA18ADF2G72AZ?2G6 - DDR4 2666 PC4-21300 CL19 2Rx8 VLP 288-pin 1.2V ECC Unbuffered DIMM Memory RAM Module Upgrade
CAS Latency:
CL19
Voltage:
1.2V
Brand:
OWC
Capacity:
16GB
Model #:
OWC2E6V42R816GB-C285-SF
$
199
.99
–
Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
Compare
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OWC 16GB DDR4 2666 PC4-21300 CL19 2Rx8 VLP 288-pin 1.2V ECC Unbuffered DIMM Memory RAM Module Upgrade for Select Workstations, Servers, and NAS Systems
CAS Latency:
CL19
Voltage:
1.2V
Brand:
OWC
Capacity:
16GB
Model #:
OWC2E6V42R816GB-SF
$
199
.99
–
Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
Compare
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OWC 256GB (8x32GB) DDR4 2666MHz PC4-21300 CL19 2RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PC
CAS Latency:
CL19
Voltage:
1.2V
Multi-channel Kit:
Dual Channel Kit
Recommend Use:
Desktops
Model #:
OWC2U6D42R8256K
$
2,217
.52
–
Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
Compare
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OWC 32GB DDR4 2666 PC4-21300 CL19 2Rx8 VLP 288-pin 1.2V ECC Unbuffered DIMM Memory RAM Module Upgrade for Select Workstations, Servers, and NAS Systems
CAS Latency:
CL19
Voltage:
1.2V
Brand:
OWC
Capacity:
32GB
Model #:
OWC2E6V42R832GB-SF
$
379
.99
–
Direct from OWC
This product is sold direct from the manufacturer.
Add to cart
Compare
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(184)
CORSAIR Vengeance LPX (AMD Ryzen Ready) 16GB (2 x 8GB) 288-Pin DDR4 2666 (PC4 21300) AMD Optimized Desktop Memory Model CMK16GX4M2Z2666C16
CAS Latency:
CL16
Voltage:
1.20V
Multi-channel Kit:
Dual Channel Kit
Timing:
16-18-18-35
Model #:
CMK16GX4M2Z2666C16
$
149
.00
–
More options from $69.00 - $149.00
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(4)
Used - Like New
CORSAIR Vengeance LPX 8GB DDR4 2666 (PC4 21300) Desktop Memory Model CMK8GX4M1A2666C16R
CAS Latency:
CL16
Voltage:
1.20V
Timing:
16-18-18-35
Recommend Use:
High Performance or Gaming Memory
Model #:
CMK8GX4M1A2666C16R
$
76
.95
–
Add to cart
Compare
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(45)
Used - Like New
CORSAIR Vengeance LPX 16GB (4 x 4GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CMK16GX4M4A2666C16
CAS Latency:
CL16
Voltage:
1.20V
Timing:
16-18-18-35
Heat Spreader:
Anodized Aluminum
Model #:
CMK16GX4M4A2666C16
$
109
.95
–
More options from $109.95
Add to cart
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Refurbished
Colorful Desktop Memory DDR4 16G 2666MHz 288 Pin PC RAM (PC4-21300) CL19 1.2V Desktop Computer Gaming Memory
CAS Latency:
CL19
Multi-channel Kit:
Dual Channel Kit
Timing:
19-19-19-43
Brand:
Colorful
Model #:
CDPC16G2666D4N8
$
197
.00
–
Free Shipping
Add to cart
Compare
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8GB 2666MHZ DDR4 ECC MEMORY
OUT OF STOCK
ECC:
Yes
Parts:
1 Year
Model #:
4UY11AA#ABA
$
59
.99
–
More options from $27.13 - $59.99
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