Western Digital Green

WD Green

• Western Digital Green family.
• Formerly known as Western Digital Caviar Green.

Most recent model / family at the top:

EZRX / AZRX family

• WD Advanced Format Green.

Earlier models are based on 750 GB/platter,

later models are based on 1 TB/platter.

Model name breakout

• WDnnnn - capacity in TB / (n x 0.1 GB)
• E - form factor: 3.5 inch; units: TB /

A - form factor: 3.5 inch; units: GB

• Z - business unit: Desktop; advanced format WD Green
• R - 5400 RPM with 64MB cache
• X - SATA 3Gbps, 6Gbps capable 22-pin SATA connector
• -
• nn - customer ID
• xxx - internal model number (internal physical configuration)
• B0 - revision

Notes

• 5400 RPM
• 4K physical sectors

Models

Model	Cfg	Capacity	Platters	Heads	Platter capacity	Max rate	Min rate	Firmware	PCB ASSY	Date	Notes
WD40EZRX-00SPEB0	SPE	4 TB	4	8	1 TB	155 MBps	65 MBps			2013-09-01	.
WD30EZRX-00SPEB0	SPE	3 TB	3	6	1 TB	155 MBps	65 MBps			2012-05-01	.
WD30EZRX-00D8PB0	D8P	3 TB								2012-05-01	.
WD30EZRX-00DC0B0 WD30EZRX-22DC0B0 WD30EZRX-55DC0B0	DC0	3 TB	3	6	1 TB	155 MBps	65 MBps			2012-05-01	Diablo3D
WD30EZRX-00AZ6B0	AZ6	3 TB				130 MBps	55 MBps			2012-05-01	probably 750GB
WD30EZRX-00MMMB0	MMM	3 TB	4	8	750 GB	130 MBps	55 MBps			2012-05-01	phy_heads=8 used_heads=8
WD25EZRX-00AZ6B0	AZ6	2.5 TB				130 MBps	55 MBps			2012-04-01	probably 750GB
WD25EZRX-00MMMB0	MMM	2.5 TB	4	7	750 GB	130 MBps	55 MBps			2012-04-01	.
WD20EZRX-00D8PB0 WD20EZRX-19D8PB0	D8P	2 TB								2012-10-01
WD20EZRX-00DC0B0 WD20EZRX-19DC0B0	DC0	2 TB	2	4	1 TB	155 MBps	65 MBps			2012-10-01
WD15EZRX-00DC0B0	DC0	1.5 TB	2	3	1 TB	155 MBps	65 MBps				.
WD10EZRX-00A8LB0	A8L	1 TB	1	2	1 TB	155 MBps	65 MBps			2012-08-01	.
WD10EZRX-00DC0B0	DC0	1 TB	1	2	1 TB	155 MBps	65 MBps			2012-08-01	.
WD10EZRX-00L4HB0 WD10EZRX-22L4HB0	L4H	1 TB	1	2	1 TB	155 MBps	65 MBps			2012-08-01	phy_heads=2 used_heads=2
WD7500AZRX-00A8LB0	A8L	750 GB	1	2	1 TB	155 MBps	65 MBps				short-stroked rare
WD5000AZRX-00A8LB0	A8L	500 GB	1	1	1 TB	155 MBps	65 MBps			2012-06-01	.
WD5000AZRX-00L4HB0	L4H	500 GB	1	1	1 TB	155 MBps	65 MBps			2012-06-01	.

EARX family

• WD Green EARX family

Model name breakout

• WD
• 10/15/20 - capacity: 1/1.5/2 TB
• E - form factor: 3.5 inch; units: TB
• A - Business unit: Desktop, WD Green
• R - 5400 RPM with 64MB cache
• X - SATA 3Gbps, 6Gbps capable 22-pin SATA connector
• -
• nn - customer ID
• xxx - internal model number (internal physical configuration)
• B0 - revision

Notes

• 5400 RPM
• 4K physical sectors

Models

Model	Cfg	Capacity	Platters	Heads	Platter capacity	Max rate	Min rate	Firmware	PCB ASSY	Notes
WD10EARX-00PASB0	PAS	1 TB	2	4	666 GB					phy_heads=6 used_heads=4
WD10EARX-00N0YB0 WD10EARX-22N0YB0 WD10EARX-32N0YB0	N0Y	1 TB	2	3	666 GB				2061-771698-904	used_heads=3 Sadle2D
WD15EARX-00ZUDB0	ZUD	1.5 TB	5	6	600 GB					phy_heads=6 used_heads=5
WD15EARX-00PASB0 WD15EARX-22PASB0	PAS	1.5 TB	3	5	666 GB
WD20EARX-00ZUDB0	ZUD	2 TB	4	8	600 GB			80.00A80	2061-771716-201	.
WD20EARX-008FB0	8F	2 TB	3	6	666 GB	125 MBps	55 MBps	51.0AB51	2061-771716-201	.
WD20EARX-00PASB0 WD20EARX-07PASB0 WD20EARX-22PASB0 WD20EARX-32PASB0 WD20EARX-55PASB0	PAS	2 TB	3	6	666 GB	130 MBps	55 MBps	51.0AB51	2061-771698-802 2061-771698-904 2061-771698-T04
WD20EARX-00AZ6B0	AZ6	2 TB	4	8	750 GB	130 MBps	85 MBps	80.00A80		short- stroked
WD20EARX-00MMMB0	MMM	2 TB	4	8	750 GB	130 MBps	85 MBps	80.00A80	2061-771698-T04	short- stroked