Product comparison · 2 raid controllers

Dell PERC H840 vs Lenovo 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s

9specifications compared
5differ
4identical
17known for one product only

Key differences

The Lenovo 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s has 10.8 Gbit/s more data transfer rate than the Dell PERC H840 (12 Gbit/s vs 1.2 Gbit/s). The Dell PERC H840 has 239 more devices supported than the Lenovo 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s (255 vs 16). The Dell PERC H840 has 0.6 mm more width than the Lenovo 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s (167.6 mm vs 167 mm). Supported storage drive interfaces: SAS on the Dell PERC H840, SAS, Serial ATA on the Lenovo 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s. RAID levels: 0, 1, 5, 6, 10, 50, 60 on the Dell PERC H840, 0, 1, 10, 5, 50, 6, 60 on the Lenovo 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s.

Supported storage drive interfaces
- PERC H840:SAS
- 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s:SAS, Serial ATA
RAID levels
- PERC H840:0, 1, 5, 6, 10, 50, 60
- 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s:0, 1, 10, 5, 50, 6, 60
Data transfer rate
- PERC H840:1.2 Gbit/s
- 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s:12 Gbit/s
Number of devices supported
- PERC H840:255
- 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s:16
Width
- PERC H840:167.6 mm
- 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s:167 mm

Side by side

Differences highlightedShow differences only

Comparison of PERC H840, 4Y37A72485
26 specifications	A Dell PERC H840 View product	B Lenovo 4Y37A72485 RAID controller PCI Express x8 3.0 12 Gbit/s Model 4Y37A72485 View product
Ports & interfaces1 differ
Supported storage drive interfacesDiffers	SAS	SAS, Serial ATA
Internal mini-SAS portsKnown for one	2	Unknown — not stated by the source
Performance3 differ
RAID levelsDiffers	0, 1, 5, 6, 10, 50, 60	0, 1, 10, 5, 50, 6, 60
Data transfer rateDiffers	1.2 Gbit/s	12 Gbit/s
Internal memoryKnown for one	Unknown — not stated by the source	4000 MB
ChipsetKnown for one	Unknown — not stated by the source	Microchip Luxor ROC PM8236
JBOD functionKnown for one	Unknown — not stated by the source	Yes
Number of devices supportedDiffers	255	16
Hot-swapKnown for one	Unknown — not stated by the source	Yes
CertificationKnown for one	Unknown — not stated by the source	FCC Part 15 Class A Australia/New Zealand (AS/NZS 3548) Canada (ICES-003 Class B) Europe (EN55032/EN55024) Japan VCCI Korea KCC RoHS compliant EN/IEC/UL 60950 USA (FCC 47 CFR part 15 Subpart B class B)
Compatible productsKnown for one	- PowerEdge R7415 - PowerEdge R640 - PowerEdge R740 - PowerEdge R840 - PowerEdge R440 - PowerEdge T640 - PowerEdge R540 - PowerEdge T440 - PowerVault NX3240 - PowerEdge R740xd2 - PowerEdge R740XD - PowerEdge R940 - PowerEdge R7425 - PowerEdge R940xa	Unknown — not stated by the source
System requirementsidentical
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Server operating systems supportedKnown for one	Windows Server 2012, Windows Server 2016	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 55 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	20 - 80%
Weight & dimensions1 differ
WidthDiffers	167.6 mm	167 mm
HeightKnown for one	Unknown — not stated by the source	64 mm
DepthKnown for one	64.4 mm	Unknown — not stated by the source
Processoridentical
Built-in processorKnown for one	Yes	Unknown — not stated by the source
Processor familyKnown for one	LSI	Unknown — not stated by the source
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84733080	Unknown — not stated by the source
Other featuresidentical
Dell E-Value CodeKnown for one	405-AAMZ	Unknown — not stated by the source

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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