- Test Setup and Methodology
- AS SSD and ATTO Benchmark
- ATTO Benchmark
- Futuremark Benchmark
- AIDA64 Disk Access Test
- Sequential Data Performance Test
- Random Data Performance Test
- Transfer Tests
- Online Purchase Links
Disclosure: This review unit is supplied by WD
WD phased out its Green series drives. But at the same time, WD Blue series now has a desktop SSHD drive lineup. This is the WD4031X Blue drive with 4TB drive storage capacity. This drive uses 8GB MLC NAND and a 64MB Cache.
As per WD, this drive uses a set of algorithms which tracks data usage and prioritizes part of the data which is frequently used using the 8GB NAND. One of such uses (as WD highlighted) is for gaming. With this algorithm and the 8GB NAND, it would provide lesser loading times compared to traditional hard drives. With a much larger capacity and value still towards mechanical drives (for now), gamers can keep a large amount of games stored away in the drive.
SSHD concept isn’t something new. Both Seagate and WD have released its own variants in 2.5” and 3.5” form factors.
Specifications 4 TB Hard Drive Type WD Blue SSHD Model Number WD40E31X Interface SATA 6 GB/s Formatted Capacity 4 TB Form Factor 3.5-inch Advanced Format (AF) Yes ROHS Compliant Yes Performance Data transfer rate (max) Buffer to host 6 GB/s Host to/from drive (sustained) 150 MB/s NAND Type MLC NAND Size (GB) 8 Cache (MB) 64 Reliability/Data Integrity Load/unload cycles 300,000 Non-recoverable read errors per bits read <1 in 10¹⁴ Limited warranty (years) 3 Power Management Spinup (Max) 12VDC ±10% (A, peak) 2.8 Spinup (Max) 5VDC ±10% (A, peak) 1 Spinup (Max) (W) 38.6 Average power requirements (W) Read/Write 6 Idle 4.75 Standby and Sleep 0.57 Environmental Specifications Operating Non-operating 0 to 60 Shock (Gs) -40 to 70 Operating (2 ms, read/write) 30 Non-operating (2 ms) 350 Acoustics (dBA) Idle 25 Seek (average) 26 Physical Dimensions Height (in./mm, max) 1.028/25.4 Length (in./mm, max) 5.787/147 Width (in./mm, ± .01 in.) 4/101.6 Weight (lb./kg, ± 10%) 0.99/0.45
This is a 5400RPM drive and you get a usable space of 3.63TB. The operating temperature ratings is up to 60 degrees Celsius. This is good considering it can be used in mini-ITX systems even with restricted airflow and even in gaming consoles that have 3.5” bay internally- like the PlayStation 4.
There’s a thin foam between the drive and the PCB to dampen any vibration in between when in use. There’s a small thermal pad on one of the chips on the PCB.