The 300-1946 is a Sun power adapter component. Pricing on the 300-1946 is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 300-1946 are shown on this page.
Trust Signals
US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: Is the 300-1946 compatible with my switch?
Pro Disk Network validates every 300-1946 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 300-1946 ship?
If in stock, the 300-1946 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 300-1946 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.
What is the 300-1946?
The 300-1946 is a Sun network interface module, manufactured by Sun. 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 300-1946
Pros
Same-day US shipping cuts deployment downtime
Cons
Third-party optic — some firmware revs require "service unsupported transceiver-type"
Bulk DAC orders may ship LTL on >100-pc reels
Confirm transceiver coding before mixing vendors in the same chassis
Frequently Asked Questions about 300-1946
Is the 300-1946 a genuine Sun part?
Yes. Pro Disk Network sources every 300-1946 as factory-original Sun inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Sun servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Is the 300-1946 compatible with my switch?
Pro Disk Network validates every 300-1946 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 300-1946 ship?
If in stock, the 300-1946 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 300-1946?
New 300-1946 units carry the full Sun manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 300-1946?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 300 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
300-1906 — 300-1906 - Sun 420-Watts AC Power Supply for Blade 1500 — $333.13
300-1906-01 — 300-1906-01 - Sun 420-Watts AC Power Supply for Blade 1500 — $569.71
300-1910 — 300-1910 - Sun 600-Watts Power Supply for Blade 2500 Silver — $419.58
300-1910-01 — 300-1910-01 - Sun 600-Watts Power Supply for Blade 2500 Silver — $380.76
300-1911 — 300-1911 - Sun StorEdge D240 Type A155 Power Supply — $355.14
300-1911-01 — 300-1911-01 - Sun StorEdge D240 Type A155 Power Supply — $252.08
300-1912 — 300-1912 - Sun 3048-Watts Power Supply For SUN Blade 8000 — $302.40
300-1917 — 300-1917 - Sun 4000 / 4700-Watts 48V AC Power Supply for SunFire 12K / 15K / E20K / E25K — $812.16
300-1928 — 300-1928 - Sun X4341A AC Redundant Transfer Switch for 6800 — $1,487.50
300-1931 — 300-1931 - Sun Power Supply A185 AC 48V DC for SunFire E4900 RoHS YL — $576.00
300-1945 — 300-1945 - Sun 500-Watts AC Redundant Power Supply for SunFire V215 / V245 / V445 and Netra T2000 — $84.00
300-1945-01 — 300-1945-01 - Sun 500Watt Redundant AC-Input Single Power Supply for Sun Fire V215/V245/V445/T1000/T2000 & NETRA T2000 — $113.39
Pro Disk Network Buyer’s Guide: Power Adapter
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 300-1946 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 300-1946 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 300-1946 and the connected NICs support jumbo frames — some older NICs cap at 9000-byte payloads even when jumbo-enabled.