★★★★★ 4
Cooling pillows case
Color: 01 - Light Grey
Not bad good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
SYNOLOGY DDR4 Memory Module RAM For RS4017xs+ RS3618xs RS3617xs+ RS3617RPxs RS1619xs+
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
SYNOLOGY DDR4 Memory Module RAM For RS4017xs+ RS3618xs RS3617xs+ RS3617RPxs RS1619xs+Synology DDR4 Memory Module RAM For Memory Size: 8 GBMemory Technology: DDR4 SDRAMMemory Voltage: 1. 20 VMemory Speed: 2666 MHzMemory Standard: DDR4 2666 PC4 21333Error Checking: ECCSignal Processing: UnbufferedDevice Supported: NAS ServerNumber of Pins: 288 pinForm Factor: DIMMCompatibility: Synology RackStation NAS Servers: RS4017xs+ RS3618xs RS3617xs+ RS3617RPxs RS1619xs+ Limited Warranty: 5 Year
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4.5 ★★★★★
Based on 215 reviews
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Product Reviews
★★★★★ 5
Very cold
Color: 01 - Light Grey
Super cold
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
★★★★★ 5
Cool pillow vase
Color: 01 - Light Grey
Nice cool material and stays kn the pillow well due to the snaps.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
★★★★★ 3
Ugly
Color: 01 - Light Grey
The light blue color looks like a hospital gown. Keeps cool but I don't think I can bear looking at it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 5
Cooling pillowcase
Color: 01 - Light Grey
These cooling pillowcases are fabulous. I just have one complaint they snap at the end instead of having a zipper, which could be uncomfortable if you’re laying on that snap. Also, it’s very hard to unfasten.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025
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