Dell 210-ALSB S4148U-ON 48-Ports SFP+ 4-Ports QSFP28 2-Ports QSFP+ Layer3 Managed 1U Rack-mountable Network Switch. Refurbished. In Stock Brand: Dell Part Number: 210-ALSB Condition: Refurbished Category: Transceiver Key Specs: 48-Port, 4-Port, Layer3 Availability: In Stock Shipping: Fast US-based shipping Order the Dell 210-ALSB today from ProDisk Network — your trusted source for enterprise IT hardware. All products are quality-tested and backed by our support team.
The 210-ALSB is a Dell networking devices component with features QSFP28. Pro Disk Network sells the 210-ALSB for $1,193.60 with same-day US shipping and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 210-ALSB verified against the manufacturer datasheet and our internal lab benchmarks.
Quick Answer: Is the 210-ALSB compatible with my switch?
Pro Disk Network validates every 210-ALSB against the target switch's published compatibility matrix before shipment. If you let us know your switch model and firmware version, we will confirm fitment and code the module appropriately (Cisco-coded, Juniper-coded, HPE-coded, etc.) at no extra charge.
How fast does the 210-ALSB ship?
If in stock, the 210-ALSB ships same business day on US orders placed before 3 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
The 210-ALSB is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Spine-Leaf Fabric — Top-of-rack 25G/100G aggregation between leaf and spine switches. Match speed and form factor across both endpoints.
Server Uplink — 10G/25G server-to-leaf uplink — pair with matching DAC or AOC at the host NIC to avoid optic mismatch.
DCI (Data Center Interconnect) — Inter-DC routing or aggregation. LR4/LR8 transceivers for 10–80 km, ER4 for 40 km, ZR4 for coherent long-haul.
Campus Distribution — Catalyst-class campus distribution between IDF and MDF closets. PoE+ where wireless APs and IP phones share infrastructure.
New, Bulk, or Refurbished — Choosing Your Tier
Pro Disk Network offers the 210-ALSB across three procurement tiers. Each tier is fully functional and warranted; the choice comes down to budget, warranty length, and whether the deployment is production-critical or capacity-expansion.
Tier
Discount vs OEM List
Warranty
Best For
New (Sealed OEM)
25–40%
Dell manufacturer warranty (1–5 yr)
Production-critical first-tier
New (Bulk OEM)
50–65%
3-year Pro Disk Network warranty
New cluster builds, secondary tier
Refurbished
75–85%
12-month advance replacement
Capacity expansion, lab, dev/test, EOL refresh
Bulk & Volume Pricing for 210-ALSB
Ships from our US warehouse — same-day US dispatch on orders placed before 3pm ET. Net 30 terms available for verified businesses, government and education.
Volume discounts on the 210-ALSB are automatic at checkout. Net 30 terms available for verified businesses, government, and education. Email sales@prodisknetwork.com for orders above 100 units.
Quantity
Discount
Unit Price
1
0%
$1,193.60
5+
4%
$1,145.86
10+
8%
$1,098.11
25+
13%
$1,038.43
50+
18%
$978.75
100+
23%
$919.07
What is the 210-ALSB?
The 210-ALSB is a Dell enterprise networking device with features QSFP28, manufactured by Dell. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of 210-ALSB
Pros
Lower cost than the OEM channel — same physical optic
RoHS, FCC, and CE compliance documentation available
SFP+/QSFP28 modules pre-coded for major vendor firmware
Cons
DAC cables capped at 7 m — use AOC or fibre for longer runs
SR optic vs LR optic confusion — verify before ordering
Refurbished tier optic does not include retail vendor packaging
Frequently Asked Questions about 210-ALSB
Is the 210-ALSB a genuine Dell part?
Yes. Pro Disk Network sources every 210-ALSB as factory-original Dell inventory verified against the manufacturer parts registry before listing. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Dell servers, surface-tested, and re-warranted by Pro Disk Network for 12 months.
Is the 210-ALSB compatible with my switch?
Pro Disk Network validates every 210-ALSB against the target switch's published compatibility matrix before shipment. If you let us know your switch model and firmware version, we will confirm fitment and code the module appropriately (Cisco-coded, Juniper-coded, HPE-coded, etc.) at no extra charge.
How fast does the 210-ALSB ship?
If in stock, the 210-ALSB ships same business day on US orders placed before 3 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
What is the warranty on the 210-ALSB?
New 210-ALSB units carry the full Dell manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (12 months refurbished, 36 months new bulk). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 210-ALSB?
Yes. Pro Disk Network offers automatic volume discounts at 10, 25, 50, and 100+ unit tiers. Net 30 terms are available for verified businesses, government, and education buyers. Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Pro Disk Network Buyer’s Guide: Networking Devices
Optic Coding, Vendor Lock-In, and Multi-Vendor Compatibility
Networking optics — SFP, SFP+, QSFP+, QSFP28 — are physically interoperable across vendors but logically restricted by firmware coding. The 210-ALSB is coded for a specific vendor family at our factory step before shipping, which preserves the OEM warranty workflow and allows the optic to be recognised without ‘service unsupported-transceiver’ CLI overrides. Mixing third-party optics with same-vendor optics in the same chassis is safe; mixing across vendor codings sometimes triggers warnings in the switch log.
Bandwidth Sizing for Spine-Leaf, EVPN-VXLAN, and Hyperconverged Storage
For EVPN-VXLAN overlays, the 210-ALSB carries the underlay tunnels in addition to the workload traffic. Plan for VXLAN encapsulation overhead (50 bytes) plus MTU headroom; set the underlay MTU to 9216 (jumbo frames) and the overlay MTU to 9000. Make sure both the 210-ALSB and the connected NICs support jumbo frames — some older NICs cap at 9000-byte payloads even when jumbo-enabled.