Your search for "HPE SFP28" revealed the following:
NEW Extreme 5420M-24W-4YE 5420 Series 24x 1GB PoE RJ45 4x 25GB SFP28 Switch
SKU: NSN-8583
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,758.99
• 7 in stock
Call if you need more
HPE Aruba JL086A X372 680W AC PSU for CX 6200M, CX 6300M, 2930M, 3810M
SKU: NSB-0797
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 146.99
• 21 in stock
Call if you need more
HPE J9587A 3800-24G-PoE+-2XG 24x 1GB PoE+ RJ45 2x 10GB Copper Switch
SKU: NSH-3636
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 605.99
• Only 1 remaining
Call if you need more
NEW HPE Aruba S0M82A CX 6200F Series 24x 1GB PoE+ RJ45 4x 1GB SFP Switch
SKU: NSN-0986
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,762.99
• Only 1 remaining
Call if you need more
HPE Aruba JW752A 7220 Series 4x 10G SFP+ 2x Dual Media Wireless Controller
SKU: NSB-3675
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 197.99
• Only 2 remaining
Call if you need more
NEW HPE Aruba JL805A Instant On 12x 10GB RJ45 4x 10GB SFP+ Switch
SKU: NSN-0740
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 1,204.99
• Only 2 remaining
Call if you need more
HPE Aruba JL711A CX 8360 Series 8360-24XF2C Back-to-Front Airflow Switch Bundle
SKU: NSB-8110
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 9,562.99
• Only 2 remaining
Call if you need more
HPE JD061A 1GB BASE-LH40 1310nm LC SMF SFP Transceiver
SKU: NSH-4891
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 49.99
• Only 2 remaining
Call if you need more
HPE Aruba JL261A 2930F+ Series 24x 1GB PoE RJ45 4x 1GB SFP Switch
SKU: NSH-6407
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 152.99
• 49 in stock
Call if you need more
HPE JH234A 1m 40GB QSFP+ Direct Attach Cable
SKU: NSH-9650
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 199.99
• Only 2 remaining
Call if you need more