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Bulk pack of twenty silver 3.5 inch SATA enterprise hard drives

Western Digital

Western Digital WD1003FBYX-20PK 1TB 7200 RPM 64MB SATA 3.5" internal hard drive 20PK

SKU CH-KC8C-20DXZ MPN WD1003FBYX-20PK

Enterprise-grade 1TB 7200 RPM SATA drive with 64MB cache, TLER and 1.2 million-hour reliability rating, supplied as a 20-pack of bare 3.5" units

  • Total capacity1 TB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory64 MB
  • Enterprise-class reliability with 1.2 million hours MTBF at 100% duty cycle
  • RAID-optimised firmware featuring time-limited error recovery for array stability
  • 7200 RPM spindle speed and 64 MB cache deliver responsive throughput
  • NoTouch ramp load technology protects the recording head during 24x7 operation
  • 20 bare drives in a single pack simplify bulk deployment

Enterprise storage drive

The Western Digital WD1003FBYX-20PK is a 1TB 3.5" internal hard drive built for enterprise workloads. It spins at 7200 RPM with a 64MB cache and connects through a SATA 3.0Gb/s interface. The pack contains twenty bare drives intended for RAID arrays and continuous operation.

Suited for RAID deployments

Drives include RAID-specific firmware with time-limited error recovery (TLER) and a 1.2 million hour rating at 100% duty cycle. NoTouch ramp load technology protects the recording surface during constant 24x7 use. Builders who need a different interface or a single retail unit should look elsewhere.

SATA 3.0Gb/s interface

The drive communicates over SATA 3.0Gb/s, so the host controller or backplane must provide that exact connection. Compatibility depends on matching this interface; no other transport is supported by the hardware.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $1,870.99
Pricier than about 91% of the 4,938 comparable items (median $107.99).
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $1,870.99 per TB
Pricier than about 91% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineWD RE4
Model nameWD1003FBYX-20PK
Total capacity1 TB
Performance
Rotational speed7,200 RPM
Storage
Cache memory64 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight14.52 kg
Package size279 × 254 × 203 mm

Questions about this item

Does the 20PK pack include cables or mounting hardware for the bare drives?

The 20PK contains twenty bare drives only; SATA data cables, power cables and mounting screws must be sourced separately.

Should I choose the 1TB RE4 model or a different capacity for a RAID array?

The 1TB RE4 with 64MB cache and TLER is built for 24x7 RAID duty; select higher-capacity RE4 drives only if you need more space per bay.

How does the 1.2 million hour MTBF at 100% duty cycle translate to real-world RAID uptime?

The 1.2 million hour rating at 100% duty cycle reflects continuous 24x7 enterprise RAID operation with TLER and NoTouch ramp load technology.

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