FCC ID 2AF3K-SPS2
Square Register
by Block, Inc.
Grantee Code: 2AF3K Product Code: SPS2
Latest application date: 2026-02-08
FCC ID Device Details
| FCC ID | 2AF3K-SPS2 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AF3K |
| Product Code | SPS2 |
| Applicant Business | Block, Inc. 🇺🇸 |
| Related Domains |  squareup.com |
| Equipment Class | Square Register |
| Test Firm | UL Verification Services (Guangzhou) Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 5955-7115 MHz | Original Equipment | 2026-02-08 |
| 2402-2480 MHz | Original Equipment | 2026-01-08 |
| 2412-2462 MHz | Original Equipment | 2026-01-08 |
| 5845-5885 MHz | Original Equipment | 2026-01-08 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2026-08-08 | PDF 849.9 KB |
| Internal photos | Internal Photos | 2026-08-08 | PDF 2.1 MB |
| Internal photos | Internal Photos | 2026-07-08 | PDF 4 MB |
| External Photo | External Photos | 2026-08-08 | PDF 1.5 MB |
| External photos(ATN) | External Photos | 2026-08-08 | PDF 2.3 MB |
| External photos | External Photos | 2026-07-08 | PDF 2.8 MB |
| External photos | External Photos | 2026-07-08 | PDF 1.5 MB |
| External photos P2 | External Photos | 2026-07-08 | PDF 2.3 MB |
| Label | ID Label/Location Info | 2026-02-08 | PDF 637.2 KB |
| Label | ID Label/Location Info | PDF 709.4 KB | |
| Test setup | Test Setup Photos | 2026-08-08 | PDF 1 MB |
| Test setup | Test Setup Photos | 2026-07-08 | PDF 768.1 KB |
| Test setup | Test Setup Photos | 2026-07-08 | PDF 723.9 KB |
| Test report P1 | Test Report | 2026-02-08 | PDF 5.2 MB |
| Test report P2 | Test Report | 2026-02-08 | PDF 4.3 MB |
| ant spec | Test Report | 2026-02-08 | PDF 239.5 KB |
| Test report 15B | Test Report | 2026-01-08 | PDF 638.1 KB |
| Test report 2.4G P1 | Test Report | 2026-01-08 | PDF 4.9 MB |
| Test report 2.4G P2 | Test Report | 2026-01-08 | PDF 4.9 MB |
| Test report 2.4G P3 | Test Report | 2026-01-08 | PDF 3.3 MB |
| Test report 5G P1 | Test Report | 2026-01-08 | PDF 5 MB |
| Test report 5G P2 | Test Report | 2026-01-08 | PDF 2.4 MB |
| Test report BLE P1 | Test Report | 2026-01-08 | PDF 4.9 MB |
| Test report BLE P2 | Test Report | 2026-01-08 | PDF 1.5 MB |
| Test report DSS | Test Report | 2026-01-08 | PDF 5.7 MB |
| ant spec | Test Report | PDF 2.4 MB | |
| Covered equipment list attestation | Attestation Statements | 2026-02-08 | PDF 1,003.6 KB |
| FCC Attestation Letter for 6CD | Attestation Statements | 2026-02-08 | PDF 1.1 MB |
| US agent designation attestation | Attestation Statements | 2026-02-08 | PDF 943.4 KB |
| Attestation Letter | Attestation Statements | 2026-01-08 | PDF 932.2 KB |
| Covered equipment list attestation | Attestation Statements | 2026-01-08 | PDF 961.8 KB |
| Agent letter | Cover Letter(s) | 2026-02-08 | PDF 938.9 KB |
| C2PC Letter | Cover Letter(s) | 2026-02-08 | PDF 1 MB |
| Confidentiality request letter | Cover Letter(s) | 2026-02-08 | PDF 938.1 KB |
| Agent letter | Cover Letter(s) | 2026-01-08 | PDF 998.3 KB |
| RF Exposure Evaluation | RF Exposure Info | 2026-02-08 | PDF 272.1 KB |
| RF Exposure Evaluation | RF Exposure Info | 2026-01-08 | PDF 270 KB |
| Block Metadata only | Block Diagram | PDF 783.9 KB | |
| Block Diagram Metadata only | Block Diagram | PDF 729.7 KB | |
| SCH Metadata only | Schematics | PDF 5.1 MB | |
| OP Metadata only | Operational Description | PDF 518 KB | |
| OP Metadata only | Operational Description | PDF 361.9 KB | |
| SOFTWARE SECURITY DESCRIPTION Metadata only | SDR Software/Security Info. | PDF 234.3 KB |
Application Information
| Application ID | FeauHSzhd/ebVtu04PSqeQ== |
|---|---|
| Final Action Date | 2026-02-08 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0024921181 |
| Model | SPS2 |
| Frequency Range | 5955-7115 MHz |
| Equipment Class | 6CD - 15E 6 GHz Low Power Dual Client |
| Device Description | Square Register |
| Responsible Party | Gavin Demonte, gavin@squareup.com , 415-375-3176 |
| Non-Technical Contact | Gavin Demonte, Block, Inc., gavin@squareup.com , (415) 375-3176 |
| Test Firm | Stephen Guo, UL Verification Services (Guangzhou) Co., Ltd., Stephen.guo@ul.com  , 86-0769-33817120 |
| TCB Email | TCBadmin@compliancetesting.com  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Does not apply |
| Composite Device | Yes |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | Yes |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| FeauHSzhd/ebVtu04PSqeQ== | 2026-02-08 | Original Equipment |
| fEsx0Jqf9IIo4l3vafhdfw== | 2026-01-08 | Original Equipment |
| RiZuByU0vGYOkrvzqLRtVQ== | 2026-01-08 | Original Equipment |
| Ix4NxMbZerW1JIUG9esklA== | 2026-01-08 | Original Equipment |
| 5QkBwyLIHNyETf9yQJS02g== | 2026-01-08 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules | Grant Notes |
|---|---|---|---|
| 2402-2480 MHz | 0.0695 | 15C | 41 CC |
| 2402-2480 MHz | 0.0582 | 15C | 41 CC |
| 2412-2462 MHz | 0.265 | 15C | 41 CC MO |
| 15B | CC | ||
| 5955-7115 MHz | 0.048 | 15E | 41 CC EP MO |
| 5955-6855 MHz | 0.927 | 15E | 41 CC EP MO |
| 5180-5240 MHz | 0.1112 | 15E | 41 CC MO |
| 5250 MHz | 0.0583 | 15E | 41 CC MO ND |
| 5260-5320 MHz | 0.0912 | 15E | 41 CC MO ND |
| 5500-5720 MHz | 0.108 | 15E | 41 CC MO ND |
| 5745-5825 MHz | 0.254 | 15E | 41 CC MO |
| 5845-5885 MHz | 0.126 | 15E | 41 CC MO |
Grants
TCB Grant - Application RiZuByU0vGYOkrvzqLRtVQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Compliance Testing, LLC 1724 S. Nevada Way Mesa, AZ 85204 |
Date of Grant: 01/08/2026 Application Dated: 01/08/2026 |
| Block, Inc. |
| 1955 Broadway, |
| Suite 600 |
| Oakland, CA 94612 |
| Attention: Gavin Demonte , |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2AF3K-SPS2 |
| Name of Grantee: | Block, Inc. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Square Register |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 41 CC | 15C | 2402.0 - 2480.0 | 0.0695 |
| Power listed is conducted. |
| 41: | Installation of this device must not be readily accessible to human subjects closer than 20 cm. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application Ix4NxMbZerW1JIUG9esklA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Compliance Testing, LLC 1724 S. Nevada Way Mesa, AZ 85204 |
Date of Grant: 01/08/2026 Application Dated: 01/08/2026 |
| Block, Inc. |
| 1955 Broadway, |
| Suite 600 |
| Oakland, CA 94612 |
| Attention: Gavin Demonte , |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2AF3K-SPS2 |
| Name of Grantee: | Block, Inc. |
| Equipment Class: | Digital Transmission System |
| Notes: | Square Register |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 41 CC | 15C | 2402.0 - 2480.0 | 0.0582 | ||
| 41 CC MO | 15C | 2412.0 - 2462.0 | 0.265 |
| Power listed is conducted. This device contains 20 and 40 MHz signal bandwidth. Device is a 2x2 MIMO as is described in the filing. |
| 41: | Installation of this device must not be readily accessible to human subjects closer than 20 cm. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
| MO: | This Multiple Input Multiple Output (MIMO) device was evaluated for multiple transmitted signals as indicated in the filing. |
TCB Grant - Application fEsx0Jqf9IIo4l3vafhdfw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Compliance Testing, LLC 1724 S. Nevada Way Mesa, AZ 85204 |
Date of Grant: 01/08/2026 Application Dated: 01/08/2026 |
| Block, Inc. |
| 1955 Broadway, |
| Suite 600 |
| Oakland, CA 94612 |
| Attention: Gavin Demonte , |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2AF3K-SPS2 |
| Name of Grantee: | Block, Inc. |
| Equipment Class: | Part 15 Class B Digital Device |
| Notes: | Square Register |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15B | - |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application FeauHSzhd/ebVtu04PSqeQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Compliance Testing, LLC 1724 S. Nevada Way Mesa, AZ 85204 |
Date of Grant: 02/08/2026 Application Dated: 01/26/2026 |
| Block, Inc. |
| 1955 Broadway, |
| Suite 600 |
| Oakland, CA 94612 |
| Attention: Gavin Demonte , |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2AF3K-SPS2 |
| Name of Grantee: | Block, Inc. |
| Equipment Class: | 15E 6 GHz Low Power Dual Client |
| Notes: | Square Register |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 41 CC EP MO | 15E | 5955.0 - 7115.0 | 0.048 | ||
| 41 CC EP MO | 15E | 5955.0 - 6855.0 | 0.927 |
| Power listed is E.I.R.P. This device contains 20, 40, 80 and 160 MHz signal bandwidth. Device is a 2x2 MIMO as is described in the filing. This is a C2PC application to enable 6GHz Band via software. |
| 41: | Installation of this device must not be readily accessible to human subjects closer than 20 cm. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
| EP: | Output power is Effective Isotropic Radiated Power (EIRP) |
| MO: | This Multiple Input Multiple Output (MIMO) device was evaluated for multiple transmitted signals as indicated in the filing. |
TCB Grant - Application 5QkBwyLIHNyETf9yQJS02g==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Compliance Testing, LLC 1724 S. Nevada Way Mesa, AZ 85204 |
Date of Grant: 01/08/2026 Application Dated: 01/08/2026 |
| Block, Inc. |
| 1955 Broadway, |
| Suite 600 |
| Oakland, CA 94612 |
| Attention: Gavin Demonte , |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2AF3K-SPS2 |
| Name of Grantee: | Block, Inc. |
| Equipment Class: | Unlicensed National Information Infrastructure TX |
| Notes: | Square Register |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 41 CC MO | 15E | 5180.0 - 5240.0 | 0.1112 | ||
| 41 CC MO ND | 15E | 5250.0 - 5250.0 | 0.0583 | ||
| 41 CC MO ND | 15E | 5260.0 - 5320.0 | 0.0912 | ||
| 41 CC MO ND | 15E | 5500.0 - 5720.0 | 0.108 | ||
| 41 CC MO | 15E | 5745.0 - 5825.0 | 0.254 | ||
| 41 CC MO | 15E | 5845.0 - 5885.0 | 0.126 |
| Power listed is conducted. This device contains 20, 40, 80 and 160 MHz signal bandwidth. Device is a 2x2 MIMO as is described in the filing. |
| 41: | Installation of this device must not be readily accessible to human subjects closer than 20 cm. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
| MO: | This Multiple Input Multiple Output (MIMO) device was evaluated for multiple transmitted signals as indicated in the filing. |
| ND: | This UNII device complies with the Transmit Power Control (TPC) and Dynamic Frequency Selection (DFS) requirements in Section 15.407(h). |