Wd6400aaks
Overview
Product sourcing insights & recommendations
The Western Digital WD6400AAKS (Caviar Blue 640GB) is a legacy hard drive that gained prominence for its high-density platter technology in 2008. While no longer in mass production, it remains a common item in the refurbished and secondary storage markets.
Product Overview & Legacy
* Historical Significance: Released in early 2008, the WD6400AAKS was a market leader due to its 320GB per platter density. By using only two platters to reach 640GB, it offered faster data access, lower heat, and higher reliability than the three- or four-platter designs of that era Disctech.
* Key Specs: Features a 7,200 RPM rotational speed, 16MB cache, and SATA 3Gb/s interface. It incorporates WD’s IntelliSeek and NoTouch ramp load technologies to minimize noise and mechanical wear DisctechMemory4Less.
* Performance: In its prime, it was noted for sequential throughput that rivaled larger 1TB drives, making it a "sweet spot" for performance-oriented mainstream builds Disctech.
2026 Market Trends & Insights
The market context for this product in 2026 is defined by extreme supply constraints across the entire Hard Disk Drive (HDD) industry:
* Industry-Wide Shortage: Western Digital has reported being fully sold out of hard drives for all of 2026 due to massive demand from AI and Cloud infrastructure build-outs Tomshardware. Approximately 89% of WD's revenue is now driven by Enterprise/Cloud clients, leaving very little stock for the consumer market PcmagYoutube.
* Pricing Surge: Average HDD prices have increased by approximately 46% since late 2025. This has made even legacy and refurbished drives like the WD6400AAKS more valuable for budget-conscious sourcing YoutubeTomshardware.
* Current Availability: While "New" stock is virtually non-existent, refurbished units are currently available via B2B channels, often bundled with other "Second Hand" storage solutions for CCTV or legacy desktop repairs AlibabaAlibaba.
Based on the current HDD shortage, would you like me to:
Western Digital Wd6400aaks 640gb Hdd
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Sources & References
27 sources cited · Verified industry data & reports
Technical details for disk WDC WD6400AAKS
Hard Disk Sentinel
Hard Disk Model. WDC WD6400AAKS. Disk Family. Caviar Blue. Form Factor. 3.5". Capacity. 640 GB (640 x 1 000 000 000 bytes). Number Of Disks.
Western Digital Caviar Blue WD6400AAKS SATA Hard Drive
DiscTech
Specifications. Performance Specifications, WD6400AAKS. Rotational Speed, 7200 RPM. Buffer Size, 16 MB. Average Latency, 4.20 ms (nominal). Contact Start/Stop ...
WD Caviar Blue Series Disti Spec Sheet
Farnell
WD Caviar Blue hard drives are available with either SATA or. PATA interface in a variety of cache sizes with a multitude of available features to deliver rock ...
Western Digital Caviar Blue WD6400AAKS - hard drive
Octopart
Description: This Western Digital Caviar Blue WD6400AAKS is a 640GB, standard hard disk drive.Compared to other standard hard drives on the market, ...
WD6400AAKS-22A7B0, DCM HBRNNV2CB, Western ...
Donor Drives
HDD #1 Specs: Serial Number: WMASY3677010 Model: WD6400AAKS-22A7B0 Date: 12 OCT 2008. DCM: HBRNNV2CB Product of: Malaysia PCB Sticker: 2061-701537-E00 07PD3
WD6400AAKS Western Digital Caviar Blue 640GB Hard ...
Memory4Less.com
WD6400AAKS Technical Specifications: ; Cache, 16 MB ; Spindle Speed, 7200 RPM ; Average Seek Time, 8.9 ms ; Drive Interface Type, SATA 3.0 Gbps.