Product comparison · 2 nas & storage servers

Seagate HS-251+ NAS Compact Intel® Celeron® vs Seagate RS818RP+ NAS Rack (1U)

46specifications compared
23differ
23identical
46known for one product only

Key differences

Number of storage drives installed
- HS-251+ NAS Compact Intel® Celeron®:2
- RS818RP+ NAS Rack (1U):4
Number of storage drives supported
- HS-251+ NAS Compact Intel® Celeron®:2
- RS818RP+ NAS Rack (1U):4
RAID levels
- HS-251+ NAS Compact Intel® Celeron®:0, 1, JBOD
- RS818RP+ NAS Rack (1U):0, 1, 5, 6, 10, JBOD
Processor frequency
- HS-251+ NAS Compact Intel® Celeron®:2 GHz
- RS818RP+ NAS Rack (1U):2.4 GHz
Internal memory type
- HS-251+ NAS Compact Intel® Celeron®:DDR3L
- RS818RP+ NAS Rack (1U):DDR3
Ethernet LAN (RJ-45) ports
- HS-251+ NAS Compact Intel® Celeron®:2
- RS818RP+ NAS Rack (1U):4
USB 2.0 ports quantity
- HS-251+ NAS Compact Intel® Celeron®:2
- RS818RP+ NAS Rack (1U):0
Chassis type
- HS-251+ NAS Compact Intel® Celeron®:Compact
- RS818RP+ NAS Rack (1U):Rack (1U)

Side by side

Differences highlightedShow differences only

Comparison of HS-251+, RS818RP+
92 specifications	A Seagate HS-251+ NAS Compact Intel® Celeron® Model HS-251+ View product	B Seagate RS818RP+ NAS Rack (1U) Model RS818RP+ View product
Storage4 differ
Storage drives installed	Yes	Yes
Number of storage drives installedDiffers	2	4
Number of storage drives supportedDiffers	2	4
Installed storage drive type	HDD	HDD
Supported storage drive types	HDD & SSD	HDD & SSD
Supported storage drive interfacesKnown for one	Unknown — not stated by the source	Serial ATA, Serial ATA II, Serial ATA III
Storage drive sizes supportedKnown for one	Unknown — not stated by the source	2.5,3.5"
RAID support	Yes	Yes
RAID levelsDiffers	0, 1, JBOD	0, 1, 5, 6, 10, JBOD
Hot-swap drive bays	Yes	Yes
Supported file systemsDiffers	FAT32, HFS+, NTFS, ext3, ext4	BTRFS, Fat, HFS+, NTFS, ext3, ext4
Total installed storage capacityKnown for one	2 TB	Unknown — not stated by the source
Storage drive capacityKnown for one	1 TB	Unknown — not stated by the source
Storage drive interfaceKnown for one	Serial ATA, Serial ATA II, Serial ATA III	Unknown — not stated by the source
Storage drive sizeKnown for one	2.5/3.5"	Unknown — not stated by the source
Processor1 differ
Processor frequencyDiffers	2 GHz	2.4 GHz
Processor familyKnown for one	Intel® Celeron®	Unknown — not stated by the source
Processor coresKnown for one	4	Unknown — not stated by the source
Memory1 differ
Internal memory	2 GB	2 GB
Internal memory typeDiffers	DDR3L	DDR3
Maximum RAM supportedKnown for one	Unknown — not stated by the source	16 GB
Memory slotsKnown for one	Unknown — not stated by the source	2
Flash memoryKnown for one	512 MB	Unknown — not stated by the source
Network1 differ
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Wi-Fi	No	No
iSCSI support	Yes	Yes
Wake-on-LAN ready	Yes	Yes
Link aggregationKnown for one	Unknown — not stated by the source	Yes
Supported network protocolsDiffers	CIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, and SMSC	CIFS, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN)
DHCP clientKnown for one	Yes	Unknown — not stated by the source
DHCP serverKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces2 differ
Ethernet LAN (RJ-45) portsDiffers	2	4
USB port	Yes	Yes
USB 2.0 ports quantityDiffers	2	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one	Unknown — not stated by the source	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityKnown for one	Unknown — not stated by the source	0
Fiber ports quantity	0	0
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
Design2 differ
Chassis typeDiffers	Compact	Rack (1U)
Cooling typeDiffers	Passive	Active
Product colour	Black	Black
Number of fansKnown for one	Unknown — not stated by the source	2 fan(s)
Fan diameterKnown for one	Unknown — not stated by the source	4 cm
LED indicatorsKnown for one	LAN, Status	Unknown — not stated by the source
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Performance1 differ
Type	NAS	NAS
Device classDiffers	Home & Home Office	Small & Medium Business
Backup function	Yes	Yes
Backup features	Cloud, iSCSI LUN	Cloud, iSCSI LUN
Multilingual support	Yes	Yes
Number of usersKnown for one	Unknown — not stated by the source	2048 user(s)
Web-based managementKnown for one	Unknown — not stated by the source	Yes
Access Control List (ACL)Known for one	Unknown — not stated by the source	Yes
Browser supportedKnown for one	Unknown — not stated by the source	Chrome, Firefox, Internet Explorer 10, Safari
Hot spareKnown for one	Unknown — not stated by the source	Yes
On/off switch	Yes	Yes
S.M.A.R.T. support	Yes	Yes
Security algorithmsKnown for one	Unknown — not stated by the source	HTTPS, SSL/TLS
System logKnown for one	Unknown — not stated by the source	Yes
BuzzerKnown for one	Yes	Unknown — not stated by the source
Built-in FTP serverKnown for one	Yes	Unknown — not stated by the source
Built-in iTunes serverKnown for one	Yes	Unknown — not stated by the source
Reset buttonKnown for one	Yes	Unknown — not stated by the source
Software3 differ
Windows operating systems supportedDiffers	Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Win	Windows 10, Windows 7
Mac operating systems supportedDiffers	Mac OS X 10.0 Cheetah, Mac OS X 10.1 Puma, Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.9 Mavericks	Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra
Server operating systems supportedDiffers	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2	Windows Server 2016
Operating system installedKnown for one	QNAP Turbo System	Unknown — not stated by the source
Operating system versionKnown for one	4.2	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Power3 differ
Power supply locationDiffers	External	Built-in
Power supply unit (PSU) capacityDiffers	60 W	150 W
Number of power supply unitsKnown for one	Unknown — not stated by the source	2
Redundant power supply (RPS) supportKnown for one	Unknown — not stated by the source	Yes
AC input voltageKnown for one	Unknown — not stated by the source	100-240 V
AC input frequencyDiffers	100-240 Hz	50 - 60 Hz
Power consumption (sleep)Known for one	0.6 W	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	302 mm	480 mm
DepthDiffers	220 mm	518.6 mm
HeightDiffers	41.3 mm	44 mm
Packaging content1 differ
Cables includedDiffers	AC, LAN (RJ-45)	AC
Quick installation guide	Yes	Yes
External power adapterKnown for one	Yes	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 40 °C	5 - 35 °C
Operating relative humidity (H-H)	5 - 95%	5 - 95%
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 60 °C
Other featuresidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
CertificationKnown for one	Unknown — not stated by the source	FCC A, CE A, BSMI A, EAC, VCCI, CCC, RCM, KC

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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