MPN	D4ES01-4G
SKU	D4ES01-4G
UPC	846504004034
ASIN	B08HYQ4XQY
Pins	260-pin
Brand	Synology
Color	Multicolor
Model	D4ES01-4G
Speed	2666 MHz (PC4-21300)
Series	D4ES01-4G
Voltage	1.2 V
Capacity	4 GB
Warranty	5-year manufacturer warranty (as reported)
CAS Latency	CL19
Description	Synology D4ES01-4G is a 4GB DDR4 ECC SO-DIMM memory module designed for Synology DiskStation systems (example: DS1621+). This unbuffered (non-registered) ECC module is DDR4-2666 (PC4-21300), CL19, operates at 1.2 V, and uses a 260-pin SO-DIMM form factor. Intended for use in Synology devices to ensure compatibility and reliability; Synology recommends using authentic modules to avoid system instability and potential limitations to warranty and technical support. Manufacturer part number D4ES01-4G, UPC 846504004034. Country of origin: Taiwan. Manufacturer-reported warranty: 5 years.
Form Factor	SO-DIMM
Item Weight	0.704 ounces (reported)
Memory Type	DDR4 SDRAM
Manufacturer	Synology
Compatibility	Designed for Synology DiskStation devices (example: DS1621+); intended for Synology systems
Product Title	Synology D4ES01-4G 4GB DDR4-2666 ECC SO-DIMM (260-pin, Unbuffered, CL19)
TAA Compliant	Yes
Box Dimensions	5.1 x 3.4 x 0.5 inches (reported)
Package Weight	0.075 lb (approx. 1.2 oz, reported)
Module Capacity	4 GB
Error Correction	ECC (unbuffered / non-registered)
Country of Origin	Taiwan
Memory Technology	DDR4
Number of Modules	1
Package Dimensions	5 x 3.5 x 0.2 inches (reported)
Buffered/Registered	No (unbuffered)
Condition (reported)	Factory New (primary listings); also appears in used/secondary-market listings
Intended Use / Notes	Use authentic Synology memory modules for optimum compatibility and reliability. Installing non-Synology memory may cause instability or boot failures and can affect Synology support and warranty.
Manufacturer Part Number	D4ES01-4G
Number of Pins / Contacts	260

Synology Synology 4GB DDR4 ECC Unbuffered SODIMM for DS1621+ is a supplier-matched product available from Spot IT. Use this item for compatible business, office, and IT requirements. Manufacturer part number: SY70061. Order online for Australia-wide delivery with local support.