Product comparison · 2 nas & storage servers

QNAP ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT vs QNAP ES1686dc R2

56specifications compared
18differ
38identical
48known for one product only

Key differences

The QNAP ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT has 80 GB more internal memory than the QNAP ES1686dc R2 (128 GB vs 48 GB). The QNAP ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT has 8 more memory slots than the QNAP ES1686dc R2 (16 vs 8). The QNAP ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT has 3 more Ethernet LAN (RJ-45) ports than the QNAP ES1686dc R2 (6 vs 3). Only the QNAP ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT has storage drives installed. Installed storage drive type: SSD on the QNAP ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT, No on the QNAP ES1686dc R2.

Storage drives installed
- ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT:Yes
- ES1686dc R2:No
Installed storage drive type
- ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT:SSD
- ES1686dc R2:No
Storage drive sizes supported
- ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT:2.5,3.5,U.2
- ES1686dc R2:2.5,3.5"
Internal memory
- ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT:128 GB
- ES1686dc R2:48 GB
Maximum RAM supported
- ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT:1 TB
- ES1686dc R2:512 GB
Memory slots
- ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT:16
- ES1686dc R2:8
Ethernet LAN data rates
- ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT:10000 Mbit/s
- ES1686dc R2:10,100,1000 Mbit/s
Ethernet LAN (RJ-45) ports
- ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT:6
- ES1686dc R2:3

Side by side

Differences highlightedShow differences only

Comparison of ES1686Adc, ES1686dc R2
104 specifications	A QNAP ES1686Adc NAS Rack (3U) Intel® Xeon® D D-2142IT Model ES1686Adc View product	B QNAP ES1686dc R2 View product
Storage4 differ
Storage drives installedDiffers	Yes	No
Number of storage drives supported	16	16
Installed storage drive typeDiffers	SSD	No
Supported storage drive types	HDD & SSD	HDD & SSD
Supported storage drive interfacesDiffers	Serial Attached SCSI (SAS), Serial ATA, U.2	Serial Attached SCSI (SAS)
Storage drive sizes supportedDiffers	2.5,3.5,U.2	2.5,3.5"
Number of M.2 (M & B) slotsKnown for one	2	Unknown — not stated by the source
RAID support	Yes	Yes
RAID levels	0, 1, 5, 6, 10, 50, 60	0, 1, 5, 6, 10, 50, 60
Hot-swap drive bays	Yes	Yes
Supported file systemsKnown for one	ZFS	Unknown — not stated by the source
Total installed storage capacityKnown for one	Unknown — not stated by the source	0 TB
Number of storage drives installedKnown for one	Unknown — not stated by the source	0
Storage drive capacityKnown for one	Unknown — not stated by the source	0 GB
Online RAID migrationKnown for one	Unknown — not stated by the source	Yes
Online RAID expansionKnown for one	Unknown — not stated by the source	Yes
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Xeon® D	Intel® Xeon® D
Processor model	D-2142IT	D-2142IT
Processor frequency	1.9 GHz	1.9 GHz
Processor boost frequency	3 GHz	3 GHz
Processor cores	8	8
Memory3 differ
Internal memoryDiffers	128 GB	48 GB
Maximum RAM supportedDiffers	1 TB	512 GB
Memory form factor	RDIMM/LRDIMM	RDIMM/LRDIMM
Memory slotsDiffers	16	8
Internal memory typeKnown for one	Unknown — not stated by the source	DDR4
ECCKnown for one	Unknown — not stated by the source	Yes
Flash memoryKnown for one	Unknown — not stated by the source	4000 MB
Network2 differ
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesDiffers	10000 Mbit/s	10,100,1000 Mbit/s
Ethernet LAN data rate supported (max)Known for one	10000 Mbit/s	Unknown — not stated by the source
Jumbo frames support	Yes	Yes
iSCSI support	Yes	Yes
Link aggregationKnown for one	Yes	Unknown — not stated by the source
Supported network protocolsDiffers	CIFS/SMB2/SMB3, NFS v3/NFS v4.1, FTP, FTPS, TFTP, HTTP, HTTPS, SSH, iSCSI, Fibre Channel, SNMP, SMTP, and SMSC	CIFS/SMB2/SMB3, NFS v3/NFS v4.1, FTP, FTPS, TFTP, HTTP, HTTPS, SSH, iSCSI, Fibre Channel, SNMP, SMTP, SMSC
Ports & interfaces1 differ
Ethernet LAN (RJ-45) portsDiffers	6	3
USB portKnown for one	Yes	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	2
Fiber ports quantityKnown for one	Unknown — not stated by the source	4
Fiber optic connectorKnown for one	Unknown — not stated by the source	SFP+
PCI Express x8 (Gen 3.x) slotsKnown for one	Unknown — not stated by the source	2
Design2 differ
Chassis type	Rack (3U)	Rack (3U)
Cooling type	Active	Active
Number of fansDiffers	3 fan(s)	2 fan(s)
Fan diameter	6 cm	6 cm
LED indicatorsDiffers	Power, Status	Yes
Built-in displayKnown for one	Yes	Unknown — not stated by the source
Display typeKnown for one	LCD	Unknown — not stated by the source
Product colourKnown for one	Unknown — not stated by the source	Black, Grey
Fan diameter 2Known for one	Unknown — not stated by the source	6 cm
Performance1 differ
Type	NAS	NAS
Device classDiffers	Small & Medium Business	Large Enterprise Business
Backup function	Yes	Yes
Buzzer	Yes	Yes
Multilingual support	Yes	Yes
Third-party supportKnown for one	Yes	Unknown — not stated by the source
SnapshotKnown for one	Yes	Unknown — not stated by the source
Management protocolsKnown for one	SNMP V1, V2, V3	Unknown — not stated by the source
Share folder access right managementKnown for one	Yes	Unknown — not stated by the source
Access Control List (ACL)	Yes	Yes
Built-in FTP serverKnown for one	Yes	Unknown — not stated by the source
Hot spare	Yes	Yes
On/off switch	Yes	Yes
Reset button	Yes	Yes
S.M.A.R.T. support	Yes	Yes
Security algorithmsKnown for one	FIPS 140-2, 256-bit AES	Unknown — not stated by the source
Share folderKnown for one	Thick, Thin	Unknown — not stated by the source
System logKnown for one	Yes	Unknown — not stated by the source
Softwareidentical
Operating system installed	QNAP QES	QNAP QES
Operating system versionKnown for one	2.2.1	Unknown — not stated by the source
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Other operating systems supportedKnown for one	Linux	Unknown — not stated by the source
Power2 differ
Power supply location	Built-in	Built-in
Power supply unit (PSU) capacity	700 W	700 W
Number of power supply unitsDiffers	2	1
Redundant power supply (RPS) support	Yes	Yes
Power consumption (typical)Differs	588.33 W	500.87 W
AC input voltage	90-264 V	90-264 V
Fan voltage	12 V	12 V
Weight & dimensions3 differ
WidthDiffers	446.2 mm	483.1 mm
DepthDiffers	587.8 mm	630.6 mm
Height	132 mm	132 mm
WeightKnown for one	23.8 kg	Unknown — not stated by the source
Package weightDiffers	34.6 kg	32.7 kg
Package widthKnown for one	Unknown — not stated by the source	587 mm
Package depthKnown for one	Unknown — not stated by the source	750 mm
Package heightKnown for one	Unknown — not stated by the source	351 mm
Operational conditionsidentical
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Operating relative humidity (H-H)	5 - 95%	5 - 95%
Storage temperature (T-T)	-20 - 70 °C	-20 - 70 °C
Logistics dataidentical
Master (outer) case widthKnown for one	587 mm	Unknown — not stated by the source
Master (outer) case lengthKnown for one	750 mm	Unknown — not stated by the source
Master (outer) case heightKnown for one	351 mm	Unknown — not stated by the source
Master (outer) case gross weightKnown for one	32.7 kg	Unknown — not stated by the source
Products per master (outer) caseKnown for one	1 pc(s)	Unknown — not stated by the source
Other featuresidentical
Warranty period	5 year(s)	5 year(s)
Packaging contentidentical
Cables includedKnown for one	Unknown — not stated by the source	AC, LAN (RJ-45), RS-232
Power cables quantityKnown for one	Unknown — not stated by the source	2
Rack mount kitKnown for one	Unknown — not stated by the source	Yes
Number of screwsKnown for one	Unknown — not stated by the source	64
Package typeKnown for one	Unknown — not stated by the source	Box

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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