Is Toshiba N300 or Seagate IronWolf more compatible with Synology NAS?

On Synology's official list, Toshiba N300 appears on 163 models and Seagate IronWolf on 169 models. Both are vendor-confirmed lines; check your exact model below.

What is the largest capacity: Toshiba N300 or Seagate IronWolf?

Toshiba N300 tops out at 14TB on the Synology list; Seagate IronWolf at 16TB.

Toshiba N300 vs Seagate IronWolf

Both lines are on Synology's official compatibility list — this is not a "which works" question, but a "which fits your machine and workload" one. Everything below is read from Synology's own HCL, refreshed daily.

Toshiba N300 NAS 163Synology models up to 14TB · 55 part numbers

Seagate IronWolf NAS 169Synology models up to 16TB · 32 part numbers

Head-to-head on the official list

	Toshiba N300	Seagate IronWolf
Listed on Synology HCL	163 models	169 models ✓
Largest listed capacity	14 TB	16 TB ✓
Smallest listed capacity	4 TB	1 TB
Part numbers on list	55 ✓	32
Product line	NAS	NAS

Which should you buy?

Coverage-wise, Toshiba N300 appears on more Synology machines (163 vs 169) — for an older or unusual model that margin can matter. Within the same tier, the honest answer is: pick the cheaper part number at your target capacity, then verify it on your exact model's page.

Both lines overlap on 160 Synology models — if yours is one of them, either drive is officially supported.

Popular part numbers (most-listed 12 of 55 / 32)

Toshiba N300

HDWQ140UZSVA — 4TB, 138 models
HDWQ140EZSTA — 4TB, 138 models
HDWQ140AZSTA — 4TB, 138 models
HDWQ140XZSTA — 4TB, 138 models
HDWQ140YZSTA — 4TB, 138 models
HDWN160AZSTA — 6TB, 109 models
HDWN160YZSTA — 6TB, 109 models
HDWN160XZSTA — 6TB, 109 models
HDWN160UZSVA — 6TB, 108 models
HDWN160UZSTA — 6TB, 108 models
HDWG11AAZSTA — 10TB, 107 models
HDWG11AEZSTA — 10TB, 107 models

Seagate IronWolf

ST2000VN004 - 2E4164 — 2TB, 150 models
ST3000VN007 - 2E4166 — 3TB, 150 models
ST1000VN002 - 2EY102 — 1TB, 146 models
ST3000VN007 - 2AH16M — 3TB, 140 models
ST4000VN008 - 2DR166 — 4TB, 140 models
ST6000VN0033 - 2EE110 — 6TB, 132 models
ST6000VN001 - 2BB186 — 6TB, 87 models
ST6000VN0041 - 2EL11C — 6TB, 84 models
ST8000VN0022 - 2EL112 — 8TB, 84 models
ST7000VN0002 - 2EL11B — 7TB, 82 models
ST10000VN0004 - 2GS11L — 10TB, 75 models
ST10000VN0004 - 1ZD101 — 10TB, 75 models

Synology models that list both lines

These machines officially support both Toshiba N300 and Seagate IronWolf — your real decision is workload and price, not compatibility.