Updated 3 hours ago · Specifications verified October 12, 2026

Work Out Usable Space on a Asustor NAS

2 Asustor models, with the RAID types Asustor lists for each

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Quick answer

Asustor lists different RAID types by bay count. Two-bay (AS5402T): RAID 0 and 1. Four-bay (Lockerstor 4 Gen2+): RAID 0, 1, 5, 6 and 10. Single-drive and JBOD modes are listed as well, and the second table gives each list as the maker writes it. The calculator works out usable space for the classic levels; the table below does it for each model with the largest drive Asustor quotes.

As of October 12, 2026

Best price per TB

$36.84

In-stock listings in the tables on this page

Prices updated

3 hours ago

RAID levelNumber of drivesSize per drive (TB)

Common sizes

Usable capacity

21.83 TB

Raw total

32.00 TB

Protection overhead

8.00 TB

Fault tolerance

1 drive

Live drive cost

$1179

Usable price per TB

$54.01

With 4x 8TB in RAID 5 you get about 21.83 TB usable and 1-drive fault tolerance. At the cheapest live NAS price per terabyte ($36.84/TB), filling these bays costs about $1179.

Usable capacity is shown after binary and filesystem overhead (about 9%). Fault tolerance is not a backup; keep a separate copy of important data.

Usable space on each Asustor model, bays full

Model	Bays	Drive size used	RAID 0	RAID 1	RAID 5	RAID 6	RAID 10
AS5402T	2	18TB	36TB	18TB	Not listed	Not listed	Not listed
Lockerstor 4 Gen2+	4	18TB	72TB	Two-bay layout	54TB	36TB	36TB

RAID types Asustor lists, by model

Model	Bays	RAID types	Largest drive quoted or listed
AS5402T	2	Single, JBOD, RAID 0, RAID 1 on the SATA bays; RAID 5, 6 and 10 as well on an M.2 volume	18TB
Lockerstor 4 Gen2+	4	Single, JBOD, RAID 0, 1, 5, 6, 10	18TB

Notes specific to Asustor

On the AS5402T, Asustor lists RAID 5, 6 and 10 only for a volume built on its four M.2 slots; the two SATA bays offer Single, JBOD, RAID 0 and RAID 1. The table counts the SATA bays.

The Flashstor 6 Gen2 has no SATA bays, so it is not in the tables: its six M.2 slots list Single, JBOD, RAID 0, 1, 5, 6 and 10.

Asustor quotes 18TB per bay in its internal maximum for both models, and counts 20TB drives in its figure for expansion units.

Where the figures come from

Each row was read from the maker's own specification page for the model on October 12, 2026. "Not published" means the maker's page gives no figure, so none is stated here. Prices are live Amazon.com listings and change through the day.

Usable space is bays minus the drives given to protection, times drive size, in decimal terabytes. RAID 0 has no protection.

Checked on October 12, 2026. Sources: Asustor AS5402T hardware specifications; Asustor Lockerstor 4 Gen2+ (AS6704T v2) hardware specifications.

NAS drives up to 18TB, by price per TB

CMR NAS and enterprise drives. A size and type filter, not Asustor's tested list.

Price per

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60 products

Product	Capacity	Price	$ / TB	Type	Prime	Buy
DC HC550 16TB 512MB SATA Ultra SE NP3	16 TB	$589.45	$36.84	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)	14 TB	$521.00	$37.21	NAS HDD · SATACMR	-	Buy on Amazon
Seagate IronWolf 14TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST14000VN0008)	14 TB	$525.00	$37.50	NAS HDD · SATACMR	-	Buy on Amazon
Toshiba MG Series Enterprise 12TB 3.5’’ SATA 6Gbit/s Internal HDD 7200RPM 550TB/year 24/7 Operation. MG07ACA12TE	12 TB	$469.99	$39.17	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate Enterprise 3.5" 18000 GB 7200 RPM 18 TB 3.5" 7200 RPM SATA ST18000NM00J	18 TB	$712.00	$39.56	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate Enterprise Capacity \| ST10000NM0016 \| 10TB 7200 RPM SATA 6.0Gb/s 256MB Cache Hyperscale 512e 3.5" Hard Disk Drives	10 TB	$399.95	$39.99	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate IronWolf Pro ST14000NE0008 14 TB Hard Drive - 3.5" Internal - SATA (SATA/600)	14 TB	$565.92	$40.42	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital WUH721414ALE6L4 14TB Ultrastar DC HC530 SATA HDD - 7200 RPM Class, SATA 6 Gb/s, 512MB Cache, 3.5"	14 TB	$581.00	$41.50	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Toshiba - HDWG81GXZSTB - Toshiba N300 Pro HDWG81GXZSTB 16 TB Hard Drive - 3.5 Internal - SATA (SATA/600) - Conventional	16 TB	$685.50	$42.84	NAS HDD · SATACMR	-	Buy on Amazon
Seagate 14TB HDD Exos X14 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive (ST14000NM0018)	14 TB	$600.00	$42.86	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
HGST WD Ultrastar DC HC510 10TB 7200 RPM SATA 6Gb/s 3.5" Helium Platform Enterprise Hard Disk Drive - HUH721010ALE604 (0F27606)	10 TB	$429.00	$42.90	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate Exos X18 Enterprise Class, 16TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB Cache (ST16000NM000J)	16 TB	$686.91	$42.93	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate IronWolf 10TB NAS Internal Hard Drive, 3.5" SATA 6Gb/s, 7200 RPM, CMR, RAID Optimized, IronWolf Health Management – for NAS Systems (ST10000VNZ00)	10 TB	$434.99	$43.50	NAS HDD · SATACMR	-	Buy on Amazon
Seagate Exos 7E8 6TB Internal Hard Drive Enterprise HDD – CMR 3.5 Inch 512E SATA 6Gb/s 7200 RPM 128MB Cache for Enterprise, Data Center – Frustration Free Packaging (ST6000NM021A)	6 TB	$262.02	$43.67	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate Exos X10 ST10000NM0126 10TB 7200 RPM SATA 6Gb/s 512e 256MB 3.5in Enterprise Hard Drive	10 TB	$439.99	$44.00	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD181KFGX	18 TB	$793.99	$44.11	NAS HDD · SATACMR	-	Buy on Amazon
Seagate Exos X14 ST12000NM0008 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600)	12 TB	$531.45	$44.29	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate IronWolf Pro 14TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 256MB Cache for RAID Network Attached Storage, Data Recovery Service – Frustration Free Packaging (ST14000NEZ008)	14 TB	$619.99	$44.29	NAS HDD · SATACMR	-	Buy on Amazon
Seagate IronWolf 16TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6GB/S 7200 RPM 256MB Cache for Raid Network Attached Storage, with Rescue Service (ST16000VN001)	16 TB	$711.45	$44.47	NAS HDD · SATACMR	-	Buy on Amazon
Seagate IronWolf Pro ST12000NE0008 12 TB Hard Drive - 512E Format - SATA 600-3.5" Drive - Internal - 7200RPM - 256 MB Buffer - Hot Pluggable	12 TB	$534.99	$44.58	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital 16TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD161KFGXSold by Amazon	16 TB	$714.99	$44.69	NAS HDD · SATACMR	Prime	Buy on Amazon
Seagate IronWolf 10Tb NAS Internal Hard Drive HDD – 3.5 Inch SATA 6GB/S 7200 RPM 256MB Cache for Raid Network Attached Storage (ST10000VN0004)	10 TB	$449.99	$45.00	NAS HDD · SATACMR	-	Buy on Amazon
HGST - WD Ultrastar DC HC520 HDD \| HUH721212ALE600 \| 12TB 7.2K SATA 6Gb/s 256MB Cache 3.5-Inch Helium Data Center Internal Hard Disk Drive	12 TB	$541.45	$45.12	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital 12TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD122KFBXSold by Amazon	12 TB	$541.68	$45.14	NAS HDD · SATACMR	Prime	Buy on Amazon
Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD100EFGXSold by Amazon	10 TB	$455.75	$45.58	NAS HDD · SATACMR	Prime	Buy on Amazon
Seagate IronWolf Pro ST12000NE0008 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600)	12 TB	$550.00	$45.83	NAS HDD · SATACMR	-	Buy on Amazon
Seagate IronWolf Pro 16TB 7200 RPM SATA 6Gb/s 3.5" NAS HDD (ST16000NE000)	16 TB	$738.96	$46.19	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital Ultrastar DC HC550 WUH721816ALE6L4 0F38462 16TB 7.2K RPM SATA 6Gb/s 512e 512MB 3.5" SE HDD	16 TB	$744.45	$46.53	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital 16TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD161KRYZSold by Amazon	16 TB	$749.00	$46.81	Enterprise HDD · SATACMREnterprise	Prime	Buy on Amazon
WD WUS721010ALE6L4 Ultrastar DC HC330 0B42266 10TB 7200 RPM SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive	10 TB	$471.45	$47.15	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Toshiba MG09ACA18TE 18 TB Hard Drive - 3.5 Internal - SATA [SATA/600]	18 TB	$849.99	$47.22	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate Exos X24 3.5" Internal Hard Drive - 12TB, Single, SATA III 6 Gb/s	12 TB	$569.99	$47.50	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate IronWolf Pro, 14 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST14000NT001)	14 TB	$667.00	$47.64	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital 8TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8005FRYZSold by Amazon	8 TB	$387.99	$48.50	Enterprise HDD · SATACMREnterprise	Prime	Buy on Amazon
Seagate IronWolf Pro 12TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage Data Recovery Service – Frustration Free Packaging (ST12000NEZ008)	12 TB	$584.45	$48.70	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital WD Red Plus Internal Hard Drive 8TB CMR 3.5 inch SATA 5640 RPM 256MB NAS WD80EFPX-AJP Eco Package	8 TB	$389.99	$48.75	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital WUH721816ALE6L4 3.5" 16TB SATA 6Gb/s7.2K RPM 512M 0F38462 512e/4Kn HDD	16 TB	$784.45	$49.03	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate IronWolf 18TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage, Rescue Services – Frustration Free Packaging (ST18000VNZ00)	18 TB	$884.45	$49.14	NAS HDD · SATACMR	-	Buy on Amazon
Seagate Exos X18 ST18000NM001J 18 TB Hard Drive - Internal - SATA (SATA/600)	18 TB	$884.45	$49.14	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital 12TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD122KRYZSold by Amazon	12 TB	$594.99	$49.58	Enterprise HDD · SATACMREnterprise	Prime	Buy on Amazon
WD Red Pro 18TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR, 512MB Cache	18 TB	$894.45	$49.69	NAS HDD · SATACMR	-	Buy on Amazon
Toshiba 4TB Enterprise Internal Hard Drive – MG Series 3.5" SATA HDD for Server, Storage, 24/7 Operation, Hyperscale, Cloud (MG04ACA400E)	4 TB	$199.99	$50.00	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate 8TB Enterprise Capacity 3.5 HDD 7200RPM SATA 6Gbps 256 MB Cache Internal Bare Drive (ST8000NM0055)	8 TB	$400.00	$50.00	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate IronWolf 10TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache RAID Network Attached Storage Home Servers - (ST10000VN0008)	10 TB	$500.00	$50.00	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital 18TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181KRYZ	18 TB	$917.50	$50.97	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate Constellation ES.3 ST4000NM0033 4 TB Hard Drive - 3.5 Internal - SATA	4 TB	$204.92	$51.23	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital 14TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" -WD142KFGXSold by Amazon	14 TB	$717.21	$51.23	NAS HDD · SATACMR	Prime	Buy on Amazon
Seagate Exos 7E8 4TB 512n SATA 128MB Cache 3.5-Inch Enterprise Hard Drive (ST4000NM0035), Mechanical Hard Disk	4 TB	$205.00	$51.25	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital Ultrastar WUH722014CLE6L4 14 TB Hard Drive - 3.5" Internal - SATA - Energy-Assisted Magnetic Recording (EAMR) - Server Device Supported - 7200rpm - 512e Format - 512 MB Buffer	14 TB	$729.99	$52.14	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate IronWolf 10TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage, with Rescue Service (ST10000VN0008)	10 TB	$524.45	$52.45	NAS HDD · SATACMR	-	Buy on Amazon
Seagate IronWolf Pro 12 TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 256 MB Cache for RAID Network Attached Storage, Data Recovery Rescue Service (ST12000NE0007)	12 TB	$634.45	$52.87	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital 10TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD102KFBX	10 TB	$529.90	$52.99	NAS HDD · SATACMR	-	Buy on Amazon
Seagate IronWolf ST12000VN0007 12 TB 3.5 Internal Hard Drive - SATA - 7200rpm - 256 MB Buffer	12 TB	$644.45	$53.70	NAS HDD · SATACMR	-	Buy on Amazon
Seagate IronWolf 8TB Internal Hard Drive for NAS ST8000VN002Sold by Amazon	8 TB	$440.46	$55.06	NAS HDD · SATACMR	Prime	Buy on Amazon
Western Digital 14TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD140EFFX	14 TB	$771.45	$55.10	NAS HDD · SATACMR	-	Buy on Amazon
Seagate IronWolf 8Tb NAS Internal Hard Drive HDD – 3.5 Inch SATA 6GB/S 7200 RPM 256MB Cache for Raid Network Attached Storage (ST8000VN0022),Silver	8 TB	$445.00	$55.63	NAS HDD · SATACMR	-	Buy on Amazon
Western Digital 12TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD120EFAX	12 TB	$669.90	$55.83	NAS HDD · SATACMR	-	Buy on Amazon
Toshiba MG09ACA16TE / JP-EC 7,200 RPM, SATA 24x7, RV Sensor, Helium-Filled Hard Drive, 3.5 Inch Enterprise Grade Hard Drive, 16 TB (CMR), Authorized Japanese Dealer, 5 Year Warranty	16 TB	$894.00	$55.88	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital WD Red Plus Internal Hard Drive 6 TB CMR 3.5 Inch SATA 5400 rpm 256 MB NAS (Amazon.co.jp Limited)Sold by Amazon	6 TB	$335.95	$55.99	NAS HDD · SATACMR	Prime	Buy on Amazon
Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD101EFAX	10 TB	$559.90	$55.99	NAS HDD · SATACMR	-	Buy on Amazon

Renewed, refurbished and used listings

Shown for reference. These are not counted in the best price per TB above, and warranty terms differ from new drives.

Price per

Sort

12 products

Product	Capacity	Price	$ / TB	Type	Prime	Buy
Toshiba MG Series Enterprise 10TB 3.5’’ SATA 6Gbit/s Internal HDD 7200RPM 550TB/year 24/7 Operation. MG06ACA10TEUsed	10 TB	$248.99	$24.90	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Toshiba 14TB SATA 512e 256MB Cache 7200RPM 3.5" SATA 6.0Gb/s Enterprise Hard Drive - MG07ACA14TE (Renewed)Renewed	14 TB	$349.99	$25.00	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate Exos x12 12TB SATA 6Gb/s 256MB Cache Enterprise Hard Drive 3.5in (ST12000NM0127) (Renewed)Renewed	12 TB	$307.99	$25.67	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
MDD MAXDIGITALDATA MDD (MDD14TSATA25672E) 14TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Enterprise Hard Drive - 5 Years Warranty (Renewed)Renewed	14 TB	$359.99	$25.71	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital 14TB Ultrastar DC HC530 SATA HDD - 7200 RPM, SATA 6 Gb/s, 512MB Cache, 3.5" - WUH721414ALE604 (Renewed)Renewed	14 TB	$369.99	$26.43	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Western Digital 14TB Ultrastar DC HC530 SATA HDD - 7200 RPM Class, SATA 6 Gb/s, 512MB Cache, 3.5" - WUH721414ALE604 (Renewed)Renewed	14 TB	$369.99	$26.43	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Toshiba Enterprise MG Series 3.5" 16TB SATA 3UsedSold by Amazon	16 TB	$425.70	$26.61	Enterprise HDD · SATACMREnterprise	Prime	Buy on Amazon
Seagate Exos X14 ST12000NM0008 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600)Used	12 TB	$319.59	$26.63	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
Seagate Constellation ES.3 ST4000NM0033 4 TB Hard Drive - 3.5 Internal - SATAUsed	4 TB	$107.00	$26.75	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
MDD MAXDIGITALDATA (MDD12TSATA25672E) 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Enterprise Hard Drive (Renewed)Renewed	12 TB	$329.95	$27.50	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
HGST WD Ultrastar DC HC520 12TB HDD 7200 RPM SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive \| Power-Disable \| HUH721212ALE604 0F29592 (Renewed)Renewed	12 TB	$329.99	$27.50	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon
HP/Western Digital Ultrastar DC HC550 WUH721818ALE600 0F38492 18TB 7200 RPM SATA 6Gb/s 512e 512MB Cache Power Disable 3.5in Enterprise Hard Drive MB018000GXLAV P37677-001 (Renewed)Renewed	18 TB	$499.00	$27.72	Enterprise HDD · SATACMREnterprise	-	Buy on Amazon

Frequently asked questions

Which RAID levels does the AS5402T support?

RAID 0 and 1, plus single-drive and JBOD modes.

How much usable space does a two-bay Asustor give in RAID 1?

AS5402T: 18TB with two 18TB drives.

Which RAID levels does the Lockerstor 4 Gen2+ support?

RAID 0, 1, 5, 6 and 10, plus single-drive and JBOD modes.

How much usable space does a four-bay Asustor give in RAID 5?

Lockerstor 4 Gen2+: 54TB with four 18TB drives.

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Last updated: 2026-10-12 18:03:49 UTC. As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date indicated on Amazon.com and are subject to change. Any price displayed at the time of purchase will apply. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON SERVICES LLC. THIS CONTENT IS PROVIDED AS IS AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.