DatacenterDisk
ICY DOCK

ICY DOCK MB491V5K-B

ICY DOCK ToughArmor EX MB491V5K-B 2.5" U.2/U.3 NVMe SSD PCIe 5.0 Mobile Rack Enclosure for External 3.5" Drive Bay with Key Lock & Thumb Screw Design (1 x MCIO 4i SFF-TA-1016)
u2-carrier0TBU.2/U.32.5-inch bay
$438.01
newIn Stock
Price updated
Price accurate as of Aug 22, 2026, 03:30 AM
Buy on Amazon โ†’

The ICY DOCK MB491V5K-B is a 0TB U.2/U.3 Adapter in new condition. It is in stock at $438.01.

Before you buy: check the bay and the lanes

U.2 and U.3 drives need a backplane wired for NVMe or an adapter carrying PCIe lanes to the bay - a SAS backplane will not do it. Check your chassis supports NVMe in the slot you plan to use before ordering. NVMe drive prices and form factors

Model context

Part of the ICY DOCK line we track.

Quick Verdict

The ICY DOCK MB491V5K-B is a 0TB U.2/U.3 enterprise drive at $undefined/TB - Verify recording technology before use in RAID. New unit with full manufacturer warranty.

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Specifications

Capacity0TB
Form Factor2.5-inch bay
InterfaceU.2/U.3
Recording Techโ€”
Sector Sizeโ€”
Workload Ratingโ€”
Warrantyโ€”
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Market context

We do not have enough in-stock comparators of this type today to place this price against the rest of the market. The category page below ranks everything we do have.

Compare against every drive we track โ†’Cheapest per terabyte, all categories โ†’
How it compares - 0TB U.2/U.3
#1StarTech StarTech-u2-carrier
$โ€”/TB
#2ICY DOCK MB601VK-B
$โ€”/TB
#3ICY DOCK MB601VK-1B
$โ€”/TB
#4ICY DOCK MB092VK-B
$โ€”/TB
#5ICY DOCK MB491V5K-BTHIS DRIVE
$โ€”/TB

Compare to similar 0TB U.2/U.3 drives

StarTech
StarTech-u2-carrier
$โ€”/TB
$33.37
new
ICY DOCK
MB601VK-B
$โ€”/TB
$136.95
new
ICY DOCK
MB601VK-1B
$โ€”/TB
$152.63
new
ICY DOCK
MB092VK-B
$โ€”/TB
$225.40
new
StarTech
StarTech-u2-carrier
$โ€”/TB
$39.93
new

Frequently Asked Questions

This U.2/U.3 cartridge requires a compatible U.2/U.3 tape drive. U.2/U.3 drives can also read the previous LTO generation.

BaFe (Barium Ferrite) tape media has an archival life of 30+ years when stored in controlled conditions (18-26ยฐC, 20-50% humidity). Store tapes vertically and avoid magnetic fields.

Yes. LTO is an open standard. This cartridge works in any U.2/U.3-compatible standalone drive or automated tape library regardless of manufacturer.

Use Case Scenarios

๐Ÿ 
Home & SMB NAS
Building a mid-range NAS for media, backups and file sharing.
~ Good fit
Verify CMR recording before using in RAID. New drives come with full warranty.
๐Ÿ’พ
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
โœ“ Excellent fit
0TB SATA drives are ideal for backup targets. SATA gives maximum $/TB for backup repositories.
๐Ÿ—๏ธ
Virtualization Host Storage
VM images and snapshots on Proxmox, VMware or Hyper-V.
~ Good fit
Suitable for VM storage where workloads are not IOPS-intensive. SATA is fine for single-host VM storage. Consider NVMe cache for latency-sensitive VMs.

Maintenance & Troubleshooting

Maintenance Checklist

On installCheck SMART baseline on arrival
Run smartctl -a /dev/sdX and record: Reallocated_Sector_Ct, Power_On_Hours, Spin_Retry_Count. Establishes baseline for future comparison.
MonthlyRun SMART short self-test
smartctl -t short /dev/sdX โ€” takes 1-2 minutes, catches most developing issues. Schedule during off-peak.
QuarterlyRun SMART long self-test
smartctl -t long /dev/sdX โ€” full surface scan, takes 0 hours for 0TB. Any test failure is grounds for immediate replacement.
QuarterlyCheck RAID array health
Verify no degraded drives. A degraded array with no hot spare is one failure from data loss. Check mdstat or controller UI.
AnnuallyVerify drive firmware version
Check ICY DOCK support site for firmware updates. Some versions have known bugs affecting integrity.
Every 3-5 yearsPlan proactive replacement
Enterprise HDDs have higher failure rates after year 4-5. At 0TB per drive, budget for replacements before failures occur.

Troubleshooting Guide

Cause: Loose SATA data or power cable, failed port, or drive not spinning up.
Fix: Reseat both cables. Try a different port. Listen for spin-up sound. Test with a known-good cable.