Product comparison · 2 backup storage devices

HP LTO-6 Ultrium 6250 vs HP LTO-6 Ultrium 6650 External Tape Drive

Key differences

Internal
- LTO-6 Ultrium 6250:Yes
- LTO-6 Ultrium 6650 External Tape Drive:No
Width
- LTO-6 Ultrium 6250:145 mm
- LTO-6 Ultrium 6650 External Tape Drive:297 mm
Depth
- LTO-6 Ultrium 6250:206 mm
- LTO-6 Ultrium 6650 External Tape Drive:121 mm
Height
- LTO-6 Ultrium 6250:41 mm
- LTO-6 Ultrium 6650 External Tape Drive:218 mm
Weight
- LTO-6 Ultrium 6250:1.45 kg
- LTO-6 Ultrium 6650 External Tape Drive:10.9 kg

Differences highlightedShow differences only

Comparison of LTO-6 Ultrium 6250, LTO-6 Ultrium 6650 External Tape Drive
22 specifications	A HP LTO-6 Ultrium 6250 View product	B HP LTO-6 Ultrium 6650 External Tape Drive View product
Performance1 differ
Product type	Storage drive	Storage drive
Media type	Tape Cartridge	Tape Cartridge
Interface	Serial Attached SCSI (SAS)	Serial Attached SCSI (SAS)
InternalDiffers	Yes	No
Data storage type	LTO	LTO
Compression ratio	2.5:1	2.5:1
Form factor	5.25" Half-height	5.25" Half-height
Product colour	Black	Black
Security algorithms	256-bit AES	256-bit AES
Storageidentical
Native capacity	2.5 TB	2.5 TB
Compressed capacity	6.25 TB	6.25 TB
Drive device, buffer size	512 MB	512 MB
Data transmissionidentical
Compressed sustained transfer rateKnown for one	1440 MB/h	Unknown — not stated by the source
Data transfer rateKnown for one	6 Gbit/s	Unknown — not stated by the source
Native sustained transfer rateKnown for one	576 MB/h	Unknown — not stated by the source
Sustained data transfer rate (compressed)Known for one	400 MB/s	Unknown — not stated by the source
Sustained data transfer rate (native)Known for one	160 MB/s	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	145 mm	297 mm
DepthDiffers	206 mm	121 mm
HeightDiffers	41 mm	218 mm
WeightDiffers	1.45 kg	10.9 kg
Other featuresidentical
WORM capabilityKnown for one	Yes	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.