Technical reference
Western Digital WD Red Plus WD100EFGX 10TB specifications
One 10 TB WD100EFGX drive ·3.5-inch SATA ·CMR ·7200 RPM
Complete specifications with requirements, upgrade limits and sources. For our buying judgment, reviews and prices, return to the buying guide.
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Search all 36 specifications, including conditions and limits.
Identity
Exact-model ratings and their applicable conditions.
| Exact model | WD100EFGX[1] |
|---|---|
| Marketed capacity | 10 TB[1] Decimal capacity; formatting, filesystem and redundancy reduce usable space. |
| Form factor | 3.5-inch[1] |
| Interface | SATA 6 Gb/s[1] |
| Recording technology | CMR[1] |
| Drive atmosphere | Air[1] |
| Advanced Format | Yes[1] The table confirms AF; it does not separately specify the logical sector size. |
| Native command queuing | Yes[1] |
| RoHS compliant | Yes[1] EU 2011/65/EU and 2015/863. |
| Same-capacity related MPN | WD101EFBX is a 256 MB / 215 MB/s 10TB Red Plus column, not this SKU[1] |
Performance
NAS and reliability
Exact-model ratings and their applicable conditions.
| NAS bay rating | Up to 8[1] Rating does not establish exact enclosure/firmware compatibility. |
|---|---|
| Operation | 24 × 7[1] |
| NASware | NAS-optimized drive parameters[1] |
| Dual-plane balance control | Yes[1] |
| Annual workload rate | 180 TB/year[1] Annualized transferred data: TB transferred ×8760 / recorded power-on hours; not lifetime TBW. |
| MTBF rating | 1 million hours[1] Population estimate at90TB/year and40°C drive temperature; derates above these parameters up to65°C. Not an individual-drive lifespan or warranty. |
| Load/unload cycles | 600, 000[1] Controlled unload at ambient conditions. |
| Nonrecoverable read errors | <1 in 10^14 bits read[1] |
| Limited warranty | 3 years[1] Region-specific conditions apply; confirm seller and serial number coverage. |
Power and acoustics
Exact-model ratings and their applicable conditions.
| Peak 12V current | 1.9 A[1] 12VDC ±5%; allow for simultaneous drive startup. |
|---|---|
| Average read/write power | 8.8 W[1] Room/ambient-temperature measurement; not maximum PSU demand. |
| Average idle power | 6.1 W[1] Room/ambient-temperature measurement. |
| Standby / sleep power | 0.3 W[1] Room/ambient-temperature measurement. |
| Idle acoustics | 34 dBA[1] Manufacturer rating; not room noise at your listening position. |
| Average seek acoustics | 39 dBA[1] Enclosure vibration and placement affect perceived noise. |
Environment and dimensions
Exact-model ratings and their applicable conditions.
| Operating temperature | 0 °C to 65 °C[1] |
|---|---|
| Non-operating temperature | −40 °C to 70 °C[1] |
| Operating shock, read/write | 70 g, 2 ms[1] |
| Operating shock, read | 70 g, 2 ms[1] |
| Non-operating shock | 250 g, 2 ms[1] |
| Maximum height / length | 26.1 /147 mm[1] |
| Width | 101.6 mm ±0.254 mm[1] |
| Weight | 750 g ±10%[1] |
Exact product identity & open questions
- Exact-MPN method-bound performance testing: No qualifying original benchmark was confirmed. SmartHDD lacks host, software version, region and workload details; Kakaku reports are qualitative and compare different enclosures.
- Exact NAS compatibility: Synology JS shells did not yield a WD100EFGX or WD100EFGX-68CPLN0 row. Aoostar R7 owner use is not a Synology/QNAP HCL.
- RV sensors and sector size: Not separately specified in the exact-model table.
- B&H / Best Buy live PDP: Not re-fetched; dated B&H 473.99 (2026-09-08) is historical.
- Exact-MPN original video: YouTube results for WD100EFGX CrystalDiskMark were generic CDM tutorials. No frames/ASR of this MPN.
Sources
Research updated Sep 12, 2026. Individual source check dates are listed below. Measurements belong to the named reviewers; tested configurations and software versions may differ from the product you buy.
- [1] WD Red Plus HDD data sheet (September 2025) ↗
Checked Sep 11, 2026 · September 2025 p.2 column WD100EFGX; footnotes 1–10
- [2] Newegg WD100EFGX product listing ↗
Checked Sep 8, 2026 · Primary offer sold and shipped by Newegg; Add to cart; limit 1 per customer; new standard listing.
- [3] B&H WD100EFGX product listing ↗
Checked Sep 8, 2026 · MFR WD100EFGX-SPCPLN0; exact base MPN, 10 TB and quantity 1; In Stock and Add to Cart.
- [4] Western Digital WD100EFGX product listing ↗
Checked Sep 8, 2026 · Exact SKU title/model confirmed; price and inventory appear as unresolved template fields. No stock inference from hidden buttons.
- [5] Newegg: WD100EFGX current US new listing ↗
Checked Sep 10, 2026 · Exact MPN in H1; selected main offer shows Add to cart, seller Newegg, and a visible price of $404.99.
- [6] SMARTHDD: WDC WD100EFGX-68CPLN0 firmware 85.00B85 ↗
Checked Sep 12, 2026 · General/Performance/Reliability tables; units tested 1; times tested 1
- [7] 価格.com p1925 review of WD100EFGX (2025-06-09) ↗
Checked Sep 12, 2026 · Japanese owner review body and score table; image is official specs
Research and review record
- Research: Grok 4.6 · Targeted additional original-source research for five mainstream HDDs.
- Self-check: Grok 4.6 · Source identity, method and data self-check; WD original session also verified the parent-supplied Zigsow lead.
- Independent review: GPT-6 (Codex) · Original evidence verification, applicability decisions and correction of incomplete case follow-up and document interpretation.
- Editorial integration: GPT-6 (Codex) · Preserve source history, update five local research records and existing coverage report.
Independent review completed for the scope recorded in the audit.
Source evidence and review history (JSON)